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• 2d 1,43 RECEIVED DEC 0 9 2015 AOGCC North America - ALASKA - BP Prudhoe Bay PB K Pad K-12 500292175900 K-12B SCANNED MAY 0 2 2016 Design: K-12B Survey Report - Geographic 09 December, 2015 • • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-12B @ 57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Project Prudhoe Bay.GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB K Pad,TR-11-14 —� Site Position: Northing: 5,973,161.330 usft Latitude: 70°19'57.435 N From: Map Easting: 670,342.100 usft Longitude: 148°37'5.245 W Position Uncertainty: 0.00 usft Slot Radius: 0.000 in Grid Convergence: 1.30° Well K-12 API No. 500292175900 Well Position +N/-S 0.00 usft Northing: 5,975,524.000 usft Latitude: 70°20'20.437 N +E/-W 0.00 usft Easting: 671,372.000 usft Longitude: 148°36'33.601 W Position Uncertainty 0.00 usft Wellhead Elevation: 24.96 usft Ground Level: 23.76 usft Wellbore K-12B API no. 500292175902 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°) (°) (nT) BGGM2009 12/4/2009 22.46 80.97 57,683 BGGM2015 5/10/2010 22.57 81.03 57,601 Design K-12B Audit Notes: Version: Phase: ACTUAL Tie On Depth: 8,112.17 Vertical Section: Depth From(TVD) +N/-S +EI-W Direction (usft) (usft) (usft) (°) 33.70 0.00 0.00 0.00 Survey Program Date: 6/27/2011 From To (usft) (usft) Survey(Wellbore) Tool Name Description 35.57 8,112.17 K-12 Srvy 1 GCT-MS(K-12) GCT-MS Schlumberger GCT multishot 8,125.00 8,208.15 K-12B R200 Interpolated(K-12B) INC+TREND Inclinometer+known azi trend 8,243.67 8,645.00 K-12B R200 MWD(K-12B) MWD+IFR+MS-WOCA MWD+IFR+Multi Station W/O Crustal 8,669.87 8,669.87 K-12B R300 Interpolated(K-12B) INC+TREND Inclinometer+known azi trend 8,708.44 11,258.43 K-12B R300 R400 R500 MWD(K-12B) MWD+IFR+MS-WOCA MWD+IFR+Multi Station W/O Crustal 12/9/2015 2:12:36PM Page 2 COMPASS 5000.1 Build 61 • • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-12B @ 57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 33.70 0.00 0.00 33.70 0.00 0.00 5,975,524.000 671,372.000 70°20'20.437 N 148°36'33.601 W 35.57 0.17 15.28 35.57 0.00 0.00 5,975,524.003 671,372.001 70°20'20.437 N 148°36'33.601 W 46.87 0.12 342.94 46.87 0.03 0.00 5,975,524.030 671,372.001 70°20'20.437 N 148°36'33.601 W 60.37 0.08 316.60 60.37 0.05 -0.01 5,975,524.050 671,371.990 70°20'20.437 N 148°36'33.602 W 74.17 0.08 305.99 74.17 0.06 -0.02 5,975,524.063 671,371.975 70°20'20.437 N 148°36'33.602 W 88.17 0.08 296.05 88.17 0.07 -0.04 5,975,524.072 671,371.958 70°20'20.437 N 148°36'33.603 W 102.37 0.08 282.41 102.37 0.08 -0.06 5,975,524.078 671,371.940 70°20'20.437 N 148°36'33.603 W 116.67 0.08 269.22 116.67 0.08 -0.08 5,975,524.080 671,371.920 70°20'20.437 N 148°36'33.604 W 131.07 0.10 253.82 131.07 0.08 -0.10 5,975,524.076 671,371.898 70°20'20.437 N 148°36'33.604 W 145.37 0.10 235.98 145.37 0.07 -0.12 5,975,524.065 671,371.876 70°20'20.437 N 148°36'33.605 W 159.77 0.10 221.58 159.77 0.05 -0.14 5,975,524.048 671,371.857 70°20'20.437 N 148°36'33.606 W 174.17 0.12 215.52 174.17 0.03 -0.16 5,975,524.026 671,371.841 70°20'20.437 N 148°36'33.606 W 188.47 0.15 213.39 188.47 0.00 -0.18 5,975,523.998 671,371.822 70°20'20.437 N 148°36'33.607 W 202.77 0.18 208.93 202.77 -0.03 -0.20 5,975,523.962 671,371.802 70°20'20.436 N 148°36'33.607 W 217.07 0.20 203.27 217.07 -0.08 -0.22 5,975,523.919 671,371.782 70°20'20.436 N 148°36'33.608 W 231.37 0.20 196.33 231.37 -0.12 -0.24 5,975,523.872 671,371.766 70°20'20.435 N 148°36'33.608 W 245.57 0.20 190.36 245.57 -0.17 -0.25 5,975,523.823 671,371.756 70°20'20.435 N 148°36'33.609 W 259.97 0.18 187.00 259.97 -0.22 -0.26 5,975,523.776 671,371.750 70°20'20.435 N 148°36'33.609 W 274.07 0.17 185.39 274.07 -0.26 -0.26 5,975,523.733 671,371.746 70°20'20.434 N 148°36'33.609 W 288.27 0.15 187.60 288.27 -0.30 -0.26 5,975,523.693 671,371.743 70°20'20.434 N 148°36'33.609 W 302.37 0.15 192.77 302.37 -0.34 -0.27 5,975,523.657 671,371.737 70°20'20.433 N 148°36'33.609 W 316.47 0.15 198.46 316.47 -0.37 -0.28 5,975,523.621 671,371.728 70°20'20.433 N 148°36'33.610 W 330.57 0.15 205.83 330.57 -0.41 -0.29 5,975,523.587 671,371.715 70°20'20.433 N 148°36'33.610 W 344.77 0.17 213.05 344.77 -0.44 -0.31 5,975,523.552 671,371.696 70°20'20.432 N 148°36'33.611 W 358.87 0.20 218.24 358.87 -0.48 -0.34 5,975,523.515 671,371.670 70°20'20.432 N 148°36'33.611 W 372.97 0.22 222.74 372.97 -0.52 -0.37 5,975,523.475 671,371.638 70°20'20.432 N 148°36'33.612 W 387.07 0.25 226.98 387.07 -0.56 -0.42 5,975,523.433 671,371.598 70°20'20.431 N 148°36'33.614 W 401.17 0.30 230.28 401.17 -0.60 -0.47 5,975,523.387 671,371.548 70°20'20.431 N 148°36'33.615 W 415.17 0.35 231.98 415.17 -0.65 -0.53 5,975,523.336 671,371.487 70°20'20.430 N 148°36'33.617 W 429.17 0.37 232.11 429.17 -0.71 -0.60 5,975,523.280 671,371.419 70°20'20.430 N 148°36'33.619 W 443.27 0.37 231.53 443.27 -0.76 -0.67 5,975,523.222 671,371.349 70°20'20.429 N 148°36'33.621 W 457.47 0.40 230.27 457.47 -0.82 -0.74 5,975,523.161 671,371.276 70°20'20.429 N 148°36'33.623 W 471.57 0.40 229.29 471.57 -0.89 -0.82 5,975,523.095 671,371.202 70°20'20.428 N 148°36'33.625 W 485.67 0.38 228.78 485.67 -0.95 -0.89 5,975,523.031 671,371.131 70°20'20.427 N 148°36'33.627 W 500.07 0.38 226.91 500.07 -1.01 -0.96 5,975,522.965 671,371.062 70°20'20.427 N 148°36'33.630 W 515.07 0.37 224.72 515.07 -1.08 -1.03 5,975,522.895 671,370.993 70°20'20.426 N 148°36'33.632 W 530.27 0.37 223.85 530.27 -1.15 -1.10 5,975,522.823 671,370.926 70°20'20.425 N 148°36'33.634 W 545.47 0.37 223.26 545.47 -1.22 -1.17 5,975,522.751 671,370.860 70°20'20.425 N 148°36'33.636 W 560.77 0.35 223.63 560.77 -1.29 -1.23 5,975,522.679 671,370.796 70°20'20.424 N 148°36'33.638 W 575.97 0.32 218.83 575.96 -1.36 -1.29 5,975,522.611 671,370.739 70°20'20.423 N 148°36'33.639 W 591.07 0.30 210.11 591.06 -1.43 -1.34 5,975,522.543 671,370.694 70°20'20.423 N 148°36'33.641 W 606.27 0.28 202.57 606.26 -1.50 -1.37 5,975,522.474 671,370.661 70°20'20.422 N 148°36'33.642 W 621.37 0.25 196.08 621.36 -1.56 -1.40 5,975,522.408 671,370.640 70°20'20.421 N 148°36'33.642 W 636.57 0.25 194.45 636.56 -1.63 -1.41 5,975,522.343 671,370.624 70°20'20.421 N 148°36'33.643 W 651.77 0.25 197.25 651.76 -1.69 -1.43 5,975,522.279 671,370.607 70°20'20.420 N 148°36'33.643 W 666.97 0.25 200.46 666.96 -1.75 -1.45 5,975,522.216 671,370.587 70°20'20.419 N 148°36'33.644 W 682.27 0.25 204.24 682.26 -1.81 -1.48 5,975,522.153 671,370.563 70°20'20.419 N 148°36'33.645 W 697.47 0.27 210.45 697.46 -1.87 -1.51 5,975,522.092 671,370.533 70°20'20.418 N 148°36'33.646 W 712.67 0.30 215.77 712.66 -1.94 -1.55 5,975,522.028 671,370.493 70°20'20.418 N 148°36'33.647 W 727.97 0.32 219.11 727.96 -2.00 -1.60 5,975,521.961 671,370.444 70°20'20.417 N 148°36'33.648 W 743.17 0.35 221.19 743.16 -2.07 -1.66 5,975,521.892 671,370.388 70°20'20.416 N 148°36'33.650 W 758.37 0.42 222.17 758.36 -2.15 -1.73 5,975,521.814 671,370.322 70°20'20.416 N 148°36'33.652 W 773.67 0.45 222.15 773.66 -2.23 -1.81 5,975,521.726 671,370.246 70°20'20.415 N 148°36'33.654 W 788.87 0.43 221.06 788.86 -2.32 -1.88 5,975,521.637 671,370.170 70°20'20.414 N 148°36'33.656 W 803.97 0.40 221.42 803.96 -2.40 -1.96 5,975,521.553 671,370.100 70°20'20.413 N 148°36'33.659 W 12/9/2015 2:12:36PM Page 3 COMPASS 5000.1 Build 61 • • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-12B @ 57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Survey -- -- -------- Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 819.17 0.37 222.96 819.16 -2.48 -2.02 5,975,521.476 671,370.033 70°20'20.412 N 148°36'33.661 W 834.27 0.32 226.34 834.26 -2.54 -2.09 5,975,521.410 671,369.971 70°20'20.412 N 148°36'33.662 W 849.57 0.30 232.77 849.56 -2.60 -2.15 5,975,521.355 671,369.910 70°20'20.411 N 148°36'33.664 W 864.77 0.28 235.70 864.76 -2.64 -2.21 5,975,521.308 671,369.848 70°20'20.411 N 148°36'33.666 W 879.97 0.27 239.95 879.96 -2.68 -2.27 5,975,521.268 671,369.788 70°20'20.410 N 148°36'33.668 W 895.27 0.25 245.41 895.26 -2.71 -2.34 5,975,521.235 671,369.727 70°20'20.410 N 148°36'33.670 W 910.67 0.25 247.24 910.66 -2.74 -2.40 5,975,521.206 671,369.666 70°20'20.410 N 148°36'33.672 W 925.87 0.25 249.79 925.86 -2.76 -2.46 5,975,521.180 671,369.605 70°20'20.409 N 148°36'33.673 W 1 941.17 0.25 250.00 941.16 -2.79 -2.52 5,975,521.156 671,369.543 70°20'20.409 N 148°36'33.675 W 956.37 0.25 248.34 956.36 -2.81 -2.58 5,975,521.131 671,369.481 70°20'20.409 N 148°36'33.677 W 971.57 0.28 247.43 971.56 -2.84 -2.65 5,975,521.103 671,369.417 70°20'20.409 N 148°36'33.679 W 986.87 0.27 246.79 986.86 -2.87 -2.72 5,975,521.073 671,369.350 70°20'20.408 N 148°36'33.681 W 1,001.97 0.27 245.12 1,001.96 -2.89 -2.78 5,975,521.043 671,369.285 70°20'20.408 N 148°36'33.683 W 1,017.17 0.30 245.88 1,017.16 -2.93 -2.85 5,975,521.010 671,369.217 70°20'20.408 N 148°36'33.685 W 1,032.37 0.30 245.81 1,032.36 -2.96 -2.92 5,975,520.975 671,369.146 70°20'20.408 N 148°36'33.687 W 1,047.37 0.30 244.21 1,047.36 -2.99 -2.99 5,975,520.941 671,369.075 70°20'20.407 N 148°36'33.689 W 1,062.37 0.32 246.19 1,062.36 -3.03 -3.07 5,975,520.905 671,369.002 70°20'20.407 N 148°36'33.691 W 1,077.47 0.32 247.65 1,077.46 -3.06 -3.15 5,975,520.870 671,368.925 70°20'20.407 N 148°36'33.693 W 1,092.47 0.30 246.45 1,092.46 -3.09 -3.22 5,975,520.837 671,368.851 70°20'20.406 N 148°36'33.696 W 1,107.47 0.30 243.92 1,107.46 -3.12 -3.29 5,975,520.802 671,368.781 70°20'20.406 N 148°36'33.698 W 1,122.47 0.30 240.77 1,122.46 -3.16 -3.36 5,975,520.764 671,368.712 70°20'20.406 N 148°36'33.700 W 1,137.47 0.32 240.10 1,137.46 -3.20 -3.43 5,975,520.723 671,368.643 70°20'20.405 N 148°36'33.702 W 1,152.47 0.32 240.81 1,152.46 -3.24 -3.50 5,975,520.680 671,368.571 70°20'20.405 N 148°36'33.704 W 1,167.47 0.32 239.24 1,167.46 -3.28 -3.58 5,975,520.636 671,368.499 70°20'20.404 N 148°36'33.706 W 1 1,182.47 0.32 236.76 1,182.46 -3.33 -3.65 5,975,520.590 671,368.429 70°20'20.404 N 148°36'33.708 W 1,197.47 0.32 232.34 1,197.46 -3.38 -3.72 5,975,520.540 671,368.362 70°20'20.403 N 148°36'33.710 W 1,212.37 0.33 229.26 1,212.36 -3.43 -3.78 5,975,520.485 671,368.298 70°20'20.403 N 148°36'33.712 W 1,227.27 0.33 227.01 1,227.26 -3.49 -3.85 5,975,520.426 671,368.235 70°20'20.402 N 148°36'33.714 W 1,242.27 0.35 223.95 1,242.26 -3.55 -3.91 5,975,520.363 671,368.173 70°20'20.402 N 148°36'33.716 W 1,257.17 0.35 223.30 1,257.16 -3.62 -3.97 5,975,520.295 671,368.112 70°20'20.401 N 148°36'33.717 W 1,272.17 0.37 221.23 1,272.15 -3.68 -4.04 5,975,520.224 671,368.050 70°20'20.400 N 148°36'33.719 W 1,287.27 0.37 218.63 1,287.25 -3.76 -4.10 5,975,520.148 671,367.990 70°20'20.400 N 148°36'33.721 W 1,302.17 0.37 218.74 1,302.15 -3.83 -4.16 5,975,520.071 671,367.931 70°20'20.399 N 148°36'33.723 W 1,317.17 0.37 218.55 1,317.15 -3.91 -4.22 5,975,519.994 671,367.872 70°20'20.398 N 148°36'33.725 W 1,332.17 0.37 218.22 1,332.15 -3.99 -4.28 5,975,519.917 671,367.814 70°20'20.397 N 148°36'33.726 W 1,347.17 0.38 218.17 1,347.15 -4.06 -4.34 5,975,519.839 671,367.755 70°20'20.397 N 148°36'33.728 W 1,362.17 0.42 219.94 1,362.15 -4.14 -4.41 5,975,519.756 671,367.691 70°20'20.396 N 148°36'33.730 W 1,377.17 0.48 224.12 1,377.15 -4.23 -4.48 5,975,519.667 671,367.614 70°20'20.395 N 148°36'33.732 W 1,392.07 0.57 229.49 1,392.05 -4.32 -4.58 5,975,519.572 671,367.516 70°20'20.394 N 148°36'33.735 W 1,406.97 0.67 235.79 1,406.95 -4.42 -4.71 5,975,519.472 671,367.390 70°20'20.393 N 148°36'33.739 W 1,421.97 0.78 242.38 1,421.95 -4.52 -4.88 5,975,519.371 671,367.229 70°20'20.392 N 148°36'33.744 W 1,436.87 0.95 248.77 1,436.85 -4.61 -5.08 5,975,519.275 671,367.027 70°20'20.391 N 148°36'33.750 W 1,451.87 1.10 254.58 1,451.85 -4.69 -5.34 5,975,519.186 671,366.774 70°20'20.390 N 148°36'33.757 W 1,466.87 1.22 259.54 1,466.84 -4.76 -5.63 5,975,519.112 671,366.480 70°20'20.390 N 148°36'33.766 W 1,481.77 1.33 263.15 1,481.74 -4.81 -5.96 5,975,519.055 671,366.153 70°20'20.389 N 148°36'33.776 W, 1,496.77 1.43 265.52 1,496.73 -4.85 -6.32 5,975,519.011 671,365.795 70°20'20.389 N 148°36'33.786 W 1,511.77 1.52 267.24 1,511.73 -4.87 -6.70 5,975,518.978 671,365.410 70°20'20.389 N 148°36'33.797 W' 1,526.77 1.60 268.83 1,526.72 -4.88 -7.11 5,975,518.955 671,365.002 70°20'20.389 N 148°36'33.809 W 1,541.77 1.73 270.53 1,541.72 -4.89 -7.55 5,975,518.943 671,364.567 70°20'20.389 N 148°36'33.822 WI 1,556.77 1.92 272.55 1,556.71 -4.87 -8.02 5,975,518.945 671,364.089 70°20'20.389 N 148°36'33.836 W 1,571.67 2.10 274.53 1,571.60 -4.84 -8.55 5,975,518.966 671,363.567 70°20'20.389 N 148°36'33.851 W 1,586.67 2.22 275.94 1,586.59 -4.79 -9.11 5,975,519.005 671,363.003 70°20'20.390 N 148°36'33.868 W 1,601.57 2.27 277.05 1,601.48 -4.72 -9.69 5,975,519.058 671,362.422 70°20'20.390 N 148°36'33.884 W 1,616.47 2.30 277.94 1,616.37 -4.64 -10.28 5,975,519.122 671,361.831 70°20'20.391 N 148°36'33.902 W 1,631.37 2.30 278.66 1,631.25 -4.56 -10.87 5,975,519.195 671,361.238 70°20'20.392 N 148°36'33.919 W 12/9/2015 2:12:36PM Page 4 COMPASS 5000.1 Build 61 • • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-12B @ 57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 1,646.37 2.32 279.35 1,646.24 -4.46 -11.47 5,975,519.276 671,360.639 70°20'20.393 N 148°36'33.936 W 1,661.27 2.32 279.69 1,661.13 -4.36 -12.06 5,975,519.362 671,360.042 70°20'20.394 N 148°36'33.954 W 1,676.27 2.32 279.81 1,676.12 -4.26 -12.66 5,975,519.451 671,359.441 70°20'20.395 N 148°36'33.971 W 1,691.27 2.30 280.00 1,691.11 -4.16 -13.26 5,975,519.541 671,358.844 70°20'20.396 N 148°36'33.989 W 1,706.17 2.27 279.92 1,705.99 -4.05 -13.84 5,975,519.631 671,358.256 70°20'20.397 N 148°36'34.006 W 1,721.17 2.18 279.66 1,720.98 -3.96 -14.41 5,975,519.716 671,357.680 70°20'20.398 N 148°36'34.023 W 1,736.17 2.10 280.31 1,735.97 -3.86 -14.97 5,975,519.801 671,357.127 70°20'20.399 N 148°36'34.039 W 1,751.17 2.07 281.00 1,750.96 -3.76 -15.50 5,975,519.889 671,356.588 70°20'20.400 N 148°36'34.054 W 1,766.07 2.03 281.06 1,765.85 -3.66 -16.03 5,975,519.979 671,356.063 70°20'20.401 N 148°36'34.070 W 1,781.07 2.02 281.49 1,780.84 -3.55 -16.55 5,975,520.071 671,355.541 70°20'20.402 N 148°36'34.085 W 1,795.97 1.95 282.05 1,795.73 -3.45 -17.05 5,975,520.165 671,355.033 70°20'20.403 N 148°36'34.100 W 1,810.77 1.88 283.67 1,810.53 -3.34 -17.53 5,975,520.264 671,354.549 70°20'20.404 N 148°36'34.114 W 1,825.47 1.85 285.15 1,825.22 -3.22 -18.00 5,975,520.372 671,354.083 70°20'20.405 N 148°36'34.127 W 1,840.07 1.75 285.39 1,839.81 -3.10 -18.44 5,975,520.483 671,353.638 70°20'20.406 N 148°36'34.140 W 1,854.87 1.63 286.63 1,854.60 -2.98 -18.86 5,975,520.593 671,353.216 70°20'20.407 N 148°36'34.152 W 1,869.57 1.55 288.10 1,869.30 -2.86 -19.25 5,975,520.706 671,352.824 70°20'20.409 N 148°36'34.164 W 1,884.37 1.45 289.41 1,884.09 -2.73 -19.61 5,975,520.822 671,352.454 70°20'20.410 N 148°36'34.174 W 1,899.07 1.38 291.07 1,898.79 -2.61 -19.96 5,975,520.940 671,352.111 70°20'20.411 N 148°36'34.184 W 1,913.77 1.35 292.14 1,913.49 -2.48 -20.28 5,975,521.061 671,351.783 70°20'20.412 N 148°36'34.194 W 1,928.57 1.30 293.12 1,928.28 -2.34 -20.60 5,975,521.185 671,351.464 70°20'20.414 N 148°36'34.203 W 1,943.27 1.28 294.04 1,942.98 -2.21 -20.90 5,975,521.311 671,351.158 70°20'20.415 N 148°36'34.212 W 1,957.97 1.27 294.69 1,957.67 -2.08 -21.20 5,975,521.439 671,350.857 70°20'20.416 N 148°36'34.221 W 1,972.77 1.25 295.38 1,972.47 -1.94 -21.49 5,975,521.570 671,350.559 70°20'20.418 N 148°36'34.229 W 1,987.47 1.25 295.89 1,987.17 -1.80 -21.78 5,975,521.702 671,350.266 70°20'20.419 N 148°36'34.238 W 2,002.17 1.25 296.56 2,001.86 -1.66 -22.07 5,975,521.837 671,349.976 70°20'20.420 N 148°36'34.246 W 2,016.77 1.20 297.13 2,016.46 -1.52 -22.35 5,975,521.971 671,349.694 70°20'20.422 N 148°36'34.254 W 2,031.47 1.10 297.58 2,031.16 -1.38 -22.61 5,975,522.101 671,349.429 70°20'20.423 N 148°36'34.262 W 2,046.17 0.97 298.70 2,045.85 -1.26 -22.84 5,975,522.221 671,349.192 70°20'20.424 N 148°36'34.269 W 2,060.97 0.90 300.30 2,060.65 -1.14 -23.05 5,975,522.334 671,348.979 70°20'20.425 N 148°36'34.275 W 2,075.67 0.85 302.01 2,075.35 -1.02 -23.25 5,975,522.446 671,348.784 70°20'20.427 N 148°36'34.280 W 2,090.47 0.78 304.11 2,090.15 -0.91 -23.42 5,975,522.557 671,348.605 70°20'20.428 N 148°36'34.286 W 2,105.17 0.77 304.90 2,104.85 -0.80 -23.59 5,975,522.666 671,348.439 70°20'20.429 N 148°36'34.290 W 2,119.97 0.73 304.89 2,119.65 -0.68 -23.75 5,975,522.773 671,348.278 70°20'20.430 N 148°36'34.295 W 2,134.67 0.70 306.21 2,134.35 -0.58 -23.90 5,975,522.876 671,348.126 70°20'20.431 N 148°36'34.299 W 2,149.47 0.67 307.89 2,149.14 -0.47 -24.04 5,975,522.979 671,347.982 70°20'20.432 N 148°36'34.304 W 2,164.17 0.67 309.37 2,163.84 -0.36 -24.17 5,975,523.083 671,347.846 70°20'20.433 N 148°36'34.307 W 2,178.87 0.65 311.05 2,178.54 -0.26 -24.30 5,975,523.190 671,347.714 70°20'20.434 N 148°36'34.311 W 2,193.57 0.63 312.76 2,193.24 -0.15 -24.42 5,975,523.296 671,347.589 70°20'20.435 N 148°36'34.315 W 2,208.27 0.63 314.48 2,207.94 -0.03 -24.54 5,975,523.405 671,347.470 70°20'20.436 N 148°36'34.318 W 2,222.97 0.65 315.46 2,222.64 0.08 -24.66 5,975,523.519 671,347.351 70°20'20.437 N 148°36'34.322 W 2,237.57 0.65 315.66 2,237.24 0.20 -24.77 5,975,523.634 671,347.232 70°20'20.439 N 148°36'34.325 W 2,252.37 0.65 316.98 2,252.04 0.32 -24.89 5,975,523.753 671,347.114 70°20'20.440 N 148°36'34.328 W 2,267.17 0.65 320.99 2,266.84 0.45 -25.00 5,975,523.877 671,347.001 70°20'20.441 N 148°36'34.332 W 2,281.87 0.65 324.80 2,281.54 0.58 -25.10 5,975,524.008 671,346.897 70°20'20.442 N 148°36'34.335 W 2,296.67 0.65 326.75 2,296.34 0.72 -25.19 5,975,524.144 671,346.799 70°20'20.444 N 148°36'34.337 W 2,311.37 0.65 329.33 2,311.03 0.86 -25.28 5,975,524.283 671,346.708 70°20'20.445 N 148°36'34.340 W 2,326.17 0.67 330.28 2,325.83 1.01 -25.37 5,975,524.429 671,346.619 70°20'20.447 N 148°36'34.342 W 2,340.87 0.70 328.80 2,340.53 1.16 -25.46 5,975,524.578 671,346.526 70°20'20.448 N 148°36'34.345 W 2,355.67 0.70 328.19 2,355.33 1.31 -25.55 5,975,524.730 671,346.428 70°20'20.450 N 148°36'34.348 W 2,370.37 0.68 328.02 2,370.03 1.46 -25.64 5,975,524.878 671,346.332 70°20'20.451 N 148°36'34.350 W 2,385.07 0.65 327.54 2,384.73 1.61 -25.73 5,975,525.020 671,346.237 70°20'20.452 N 148°36'34.353 W 2,399.77 0.60 327.70 2,399.43 1.74 -25.82 5,975,525.154 671,346.148 70°20'20.454 N 148°36'34.356 W 2,414.47 0.55 328.00 2,414.13 1.87 -25.90 5,975,525.277 671,346.067 70°20'20.455 N 148°36'34.358 W 2,429.17 0.52 327.69 2,428.83 1.99 -25.97 5,975,525.391 671,345.991 70°20'20.456 N 148°36'34.360 W 2,443.97 0.48 327.98 2,443.63 2.09 -26.04 5,975,525.499 671,345.920 70°20'20.457 N 148°36'34.362 W 12/9/2015 2.12:36PM Page 5 COMPASS 5000.1 Build 61 0 • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-12B @ 57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +EI-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 2,458.67 0.45 328.52 2,458.33 2.20 -26.10 5,975,525.599 671,345.855 70°20'20.458 N 148°36'34.364 W 2,473.47 0.40 329.09 2,473.13 2.29 -26.16 5,975,525.692 671,345.796 70°20'20.459 N 148°36'34.366 W 2,488.17 0.33 329.24 2,487.83 2.37 -26.21 5,975,525.771 671,345.746 70°20'20.460 N 148°36'34.367 W 2,502.97 0.32 326.71 2,502.63 2.44 -26.25 5,975,525.841 671,345.700 70°20'20.461 N 148°36'34.368 W 2,517.77 0.32 324.37 2,517.42 2.51 -26.30 5,975,525.908 671,345.652 70°20'20.461 N 148°36'34.370 W 2,532.47 0.28 322.69 2,532.12 2.57 -26.35 5,975,525.969 671,345.605 70°20'20.462 N 148°36'34.371 W 2,547.17 0.25 320.03 2,546.82 2.63 -26.39 5,975,526.021 671,345.561 70°20'20.462 N 148°36'34.372 W 2,561.87 0.25 316.18 2,561.52 2.67 -26.43 5,975,526.068 671,345.517 70°20'20.463 N 148°36'34.373 W 2,576.37 0.25 311.85 2,576.02 2.72 -26.48 5,975,526.111 671,345.471 70°20'20.463 N 148°36'34.375 W 2,590.87 0.20 296.15 2,590.52 2.75 -26.52 5,975,526.142 671,345.424 70°20'20.464 N 148°36'34.376 W 2,605.27 0.13 266.34 2,604.92 2.76 -26.56 5,975,526.151 671,345.385 70°20'20.464 N 148°36'34.377 W 2,619.67 0.10 243.63 2,619.32 2.75 -26.59 5,975,526.144 671,345.357 70°20'20.464 N 148°36'34.378 W 2,634.27 0.10 228.63 2,633.92 2.74 -26.61 5,975,526.129 671,345.337 70°20'20.464 N 148°36'34.379 W 2,648.77 0.08 212.21 2,648.42 2.72 -26.62 5.975,526.112 671,345.322 70°20'20.463 N 148°36'34.379 W 2,663.27 0.07 180.01 2,662.92 2.70 -26.63 5,975,526.095 671,345.317 70°20'20.463 N 148°36'34.379 W 2,677.77 0.05 134.58 2,677.42 2.69 -26.63 5,975,526.081 671,345.322 70°20'20.463 N 148°36'34.379 W 2,692.27 0.07 108.99 2,691.92 2.68 -26.61 5,975,526.074 671,345.335 70°20'20.463 N 148°36'34.379 W 2,706.77 0.08 100.47 2,706.42 2.68 -26.59 5,975,526.070 671,345.353 70°20'20.463 N 148°36'34.378 W 2,721.27 0.08 107.54 2,720.92 2.67 -26.57 5,975,526.066 671,345.373 70°20'20.463 N 148°36'34.378 W 2,735.77 0.08 117.75 2,735.42 2.67 -26.56 5,975,526.058 671,345.392 70°20'20.463 N 148°36'34.377 W 2,750.27 0.08 111.63 2,749.92 2.66 -26.54 5,975,526.050 671,345.410 70°20'20.463 N 148°36'34.377 W 2,764.67 0.10 114.23 2,764.32 2.65 -26.52 5,975,526.042 671,345.431 70°20'20.463 N 148°36'34.376 W 2,779.17 0.12 115.19 2,778.82 2.64 -26.49 5,975,526.031 671,345.457 70°20'20.463 N 148°36'34.375 W 2,793.57 0.17 107.35 2,793.22 2.62 -26.46 5,975,526.019 671,345.491 70°20'20.462 N 148°36'34.374 W 2,807.97 0.22 103.76 2,807.62 2.61 -26.41 5,975,526.007 671,345.539 70°20'20.462 N 148°36'34.373 W 2,822.37 0.27 100.18 2,822.02 2.60 -26.35 5,975,525.996 671,345.599 70°20'20.462 N 148°36'34.371 W 2,836.87 0.32 97.60 2,836.52 2.59 -26.28 5,975,525.986 671,345.673 70°20'20.462 N 148°36'34.369 W 2,851.47 0.33 94.83 2,851.12 2.58 -26.19 5,975,525.979 671,345.756 70°20'20.462 N 148°36'34.367 W 2,865.87 0.38 92.86 2,865.52 2.57 -26.10 5,975,525.975 671,345.845 70°20'20.462 N 148°36'34.364 W 2,880.37 0.40 91.47 2,880.02 2.57 -26.01 5,975,525.974 671,345.944 70°20'20.462 N 148°36'34.361 W 2,894.87 0.40 89.63 2,894.52 2.57 -25.90 5,975,525.975 671,346.045 70°20'20.462 N 148°36'34.358 W 2,909.37 0.40 88.33 2,909.02 2.57 -25.80 5,975,525.979 671,346.146 70°20'20.462 N 148°36'34.355 W 2,923.87 0.42 87.66 2,923.52 2.57 -25.70 5,975,525.985 671,346.250 70°20'20.462 N 148°36'34.352 W 2,938.37 0.42 87.31 2,938.02 2.58 -25.59 5,975,525.992 671,346.356 70°20'20.462 N 148°36'34.349 W 2,952.77 0.42 87.28 2,952.42 2.58 -25.49 5,975,526.000 671,346.461 70°20'20.462 N 148°36'34.346 W 2,967.27 0.43 87.26 2,966.92 2.59 -25.38 5,975,526.007 671,346.568 70°20'20.462 N 148°36'34.343 W 2,981.67 0.43 87.43 2,981.32 2.59 -25.27 5,975,526.015 671,346.676 70°20'20.462 N 148°36'34.340 W 2,996.07 0.43 87.65 2,995.72 2.60 -25.17 5,975,526.022 671,346.784 70°20'20.462 N 148°36'34.337 W 3,010.47 0.43 88.24 3,010.12 2.60 -25.06 5,975,526.028 671,346.892 70°20'20.462 N 148°36'34.333 W 3,024.97 0.45 89.35 3,024.62 2.60 -24.95 5,975,526.033 671,347.003 70°20'20.462 N 148°36'34.330 W 3,039.47 0.43 88.02 3,039.12 2.61 -24.83 5,975,526.038 671,347.114 70°20'20.462 N 148°36'34.327 W 3,053.97 0.42 91.01 3,053.62 2.61 -24.73 5,975,526.041 671,347.222 70°20'20.462 N 148°36'34.324 W 3,068.57 0.43 98.39 3,068.22 2.60 -24.62 5,975,526.035 671,347.329 70°20'20.462 N 148°36'34.321 W 3,083.07 0.47 100.75 3,082.72 2.58 -24.51 5,975,526.018 671,347.442 70°20'20.462 N 148°36'34.317 W 3,097.57 0.45 100.52 3,097.22 2.56 -24.39 5,975,526.000 671,347.557 70°20'20.462 N 148°36'34.314 W 3,111.97 0.45 100.82 3,111.62 2.54 -24.28 5,975,525.981 671,347.669 70°20'20.462 N 148°36'34.311 W 3,126.47 0.42 100.55 3,126.12 2.52 -24.17 5,975,525.963 671,347.777 70°20'20.461 N 148°36'34.308 W 3,140.87 0.40 100.14 3,140.52 2.50 -24.07 5,975,525.947 671,347.879 70°20'20.461 N 148°36'34.305 W 3,155.37 0.40 100.74 3,155.01 2.48 -23.97 5,975,525.931 671,347.979 70°20'20.461 N 148°36'34.302 W 3,169.77 0.37 102.01 3,169.41 2.46 -23.88 5,975,525.914 671,348.074 70°20'20.461 N 148°36'34.299 W 3,184.17 0.33 103.23 3,183.81 2.44 -23.79 5,975,525.897 671,348.160 70°20'20.461 N 148°36'34.296 W 3,198.47 0.32 103.80 3,198.11 2.42 -23.71 5,975,525.880 671,348.240 70°20'20.460 N 148°36'34.294 W 3,212.97 0.30 104.34 3,212.61 2.40 -23.64 5,975,525.862 671,348.316 70°20'20.460 N 148°36'34.292 W 3,227.47 0.30 105.11 3,227.11 2.38 -23.56 5,975,525.845 671,348.390 70°20'20.460 N 148°36'34.290 W 3,241.87 0.30 105.25 3,241.51 2.36 -23.49 5,975,525.827 671,348.463 70°20'20.460 N 148°36'34.288 W 12/9/2015 2:12:36PM Page 6 COMPASS 5000.1 Build 61 • • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-12B @ 57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 3,256.37 0.30 105.04 3,256.01 2.34 -23.42 5,975,525.809 671,348.537 70°20'20.460 N 148°36'34.285 W 3,271.07 0.32 104.88 3,270.71 2.32 -23.34 5,975,525.790 671,348.614 70°20'20.460 N 148°36'34.283 W 3,286.07 0.35 104.74 3,285.71 2.30 -23.26 5,975,525.769 671,348.699 70°20'20.459 N 148°36'34.281 W 3,301.27 0.33 105.13 3,300.91 2.28 -23.17 5,975,525.748 671,348.787 70°20'20.459 N 148°36'34.278 W 3,316.37 0.32 105.85 3,316.01 2.26 -23.09 5,975,525.727 671,348.870 70°20'20.459 N 148°36'34.276 W 3,331.67 0.33 106.30 3,331.31 2.23 -23.00 5,975,525.705 671,348.954 70°20'20.459 N 148°36'34.273 W 3,346.97 0.32 106.69 3,346.61 2.21 -22.92 5,975,525.682 671,349.038 70°20'20.458 N 148°36'34.271 W 3,362.37 0.30 107.71 3,362.01 2.18 -22.84 5,975,525.660 671,349.118 70°20'20.458 N 148°36'34.269 W 3,377.77 0.32 107.36 3,377.41 2.16 -22.76 5,975,525.636 671,349.198 70°20'20.458 N 148°36'34.266 W 3,393.17 0.35 105.88 3,392.81 2.13 -22.67 5,975,525.613 671,349.285 70°20'20.458 N 148°36'34.264 W 3,408.57 0.35 110.46 3,408.21 2.10 -22.58 5,975,525.585 671,349.375 70°20'20.457 N 148°36'34.261 W 3,424.07 0.40 114.92 3,423.71 2.06 -22.49 5,975,525.548 671,349.469 70°20'20.457 N 148°36'34.258 W 3,439.57 0.42 112.85 3,439.21 2.02 -22.39 5,975,525.506 671,349.571 70°20'20.457 N 148°36'34.255 W 3,454.97 0.38 112.64 3,454.61 1.98 -22.29 5,975,525.466 671,349.672 70°20'20.456 N 148°36'34.253 W 3,470.47 0.37 113.74 3,470.11 1.94 -22.20 5,975,525.429 671,349.766 70°20'20.456 N 148°36'34.250 W 3,485.97 0.35 115.60 3,485.61 1.90 -22.11 5,975,525.390 671,349.855 70°20'20.455 N 148°36'34.247 W 3,501.47 0.35 117.64 3,501.11 1.85 -22.02 5,975,525.349 671,349.941 70°20'20.455 N 148°36'34.245 W 3,516.87 0.37 117.17 3,516.51 1.81 21.94 5,975,525.307 671,350.028 70°20'20.454 N 148°36'34.242 W 3,532.37 0.35 117.40 3,532.01 1.76 21.85 5,975,525.264 671,350.115 1 70°20'20.454 N 148°36'34.240 W 3,547.77 0.32 119.13 3,547.41 1.72 21.77 5,975,525.224 671,350.195 70°20'20.454 N 148°36'34.237 W 3,563.17 0.30 122.06 3,562.81 1.68 -21.70 5,975,525.183 671,350.268 70°20'20.453 N 148°36'34.235 W' 3,578.67 0.28 125.34 3,578.31 1.64 -21.64 5,975,525.141 671,350.334 70°20'20.453 N 148°36'34.233 W'. 3,594.07 0.28 128.37 3,593.71 1.59 -21.58 5,975,525.097 671,350.395 70°20'20.452 N 148°36'34.232 W 3,609.47 0.27 133.00 3,609.11 1.54 -21.52 5,975,525.050 671,350.453 70°20'20.452 N 148°36'34.230 W 3,624.97 0.28 137.72 3,624.61 1.49 -21.47 5,975,524.999 671,350.506 70°20'20.451 N 148°36'34.228 W 3,640.37 0.30 142.51 3,640.01 1.43 -21.42 5,975,524.940 671,350.557 70°20'20.451 N 148°36'34.227 W 3,655.87 0.33 150.14 3,655.51 1.36 -21.37 5,975,524.870 671,350.606 70°20'20.450 N 148°36'34.226 W 3,671.37 0.33 156.65 3,671.01 1.28 -21.33 5,975,524.791 671,350.647 70°20'20.449 N 148°36'34.225 W 3,686.87 0.33 160.66 3,686.51 1.20 -21.30 5,975,524.709 671,350.682 70°20'20.448 N 148°36'34.224 W 3,702.37 0.33 164.32 3,702.01 1.11 -21.27 5,975,524.625 671,350.711 70°20'20.448 N 148°36'34.223 W 3,717.87 0.35 166.66 3,717.51 1.02 -21.25 5,975,524.536 671,350.736 70°20'20.447 N 148°36'34.222 W 3,733.47 0.38 165.63 3,733.11 0.93 -21.22 5,975,524.440 671,350.762 70°20'20.446 N 148°36'34.221 W 3,748.97 0.38 163.75 3,748.60 0.83 -21.20 5,975,524.342 671,350.791 70°20'20.445 N 148°36'34.221 W 3,764.47 0.37 166.31 3,764.10 0.73 -21.17 5,975,524.244 671,350.819 70°20'20.444 N 148°36'34.220 W 3,779.97 0.37 168.83 3,779.60 0.63 -21.15 5,975,524.147 671,350.843 70°20'20.443 N 148°36'34.219 W 3,795.37 0.33 171.57 3,795.00 0.54 -21.13 5,975,524.055 671,350.861 70°20'20.442 N 148°36'34.219 W 3,810.87 0.30 175.99 3,810.50 0.45 -21.12 5,975,523.971 671,350.873 70°20'20.441 N 148°36'34.218 W 3,826.47 0.32 177.49 3,826.10 0.37 -21.12 5,975,523.886 671,350.879 70°20'20.440 N 148°36'34.218 W 3,841.97 0.30 178.99 3,841.60 0.29 -21.12 5,975,523.803 671,350.884 70°20'20.439 N 148°36'34.218 W 3,857.47 0.30 182.02 3,857.10 0.20 -21.12 5,975,523.722 671,350.885 70°20'20.439 N 148°36'34.218 W 3,873.07 0.30 185.10 3,872.70 0.12 -21.12 5,975,523.640 671,350.882 70°20'20.438 N 148°36'34.218 W 3,888.57 0.28 185.10 3,888.20 0.04 -21.13 5,975,523.562 671,350.877 70°20'20.437 N 148°36'34.219 W 3,904.17 0.23 183.62 3,903.80 -0.02 -21.13 5,975,523.492 671,350.873 70°20'20.436 N 148°36'34.219 W 3,919.67 0.17 202.46 3,919.30 -0.08 -21.15 5,975,523.440 671,350.863 70°20'20.436 N 148°36'34.219 W 3,935.27 0.18 221.50 3,934.90 -0.12 -21.17 5,975,523.400 671,350.839 70°20'20.436 N 148°36'34.220 W 3,950.67 0.23 220.61 3,950.30 -0.16 -21.21 5,975,523.357 671,350.804 70°20'20.435 N 148°36'34.221 W 3,966.17 0.17 230.82 3,965.80 -0.20 -21.24 5,975,523.318 671,350.767 70°20'20.435 N 148°36'34.222 W 3,981.67 0.10 252.17 3,981.30 -0.22 -21.28 5,975,523.299 671,350.737 70°20'20.435 N 148°36'34.223 W 3,997.17 0.08 276.06 3,996.80 -0.22 -21.30 5,975,523.295 671,350.713 70°20'20.435 N 148°36'34.224 W 4,012.67 0.08 292.89 4,012.30 -0.21 -21.32 5,975,523.300 671,350.692 70°20'20.435 N 148°36'34.224 W 4,028.17 0.07 270.32 4,027.80 -0.21 -21.34 5,975,523.304 671,350.673 70°20'20.435 N 148°36'34.225 W 4,043.47 0.07 203.28 4,043.10 -0.22 -21.35 5,975,523.295 671,350.660 70°20'20.435 N 148°36'34.225 W 4,058.77 0.08 164.52 4,058.40 -0.24 -21.35 5,975,523.276 671,350.659 70°20'20.434 N 148°36'34.225 W 4,074.07 0.08 167.81 4,073.70 -0.26 -21.35 5,975,523.256 671,350.665 70°20'20.434 N 148°36'34.225 W 4,089.37 0.08 160.12 4,089.00 -0.28 -21.34 5,975,523.235 671,350.671 70°20'20.434 N 148°36'34.225 W 12/9/2015 2:12:36PM Page 7 COMPASS 5000.1 Build 61 • • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-12B @ 57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude I 4,104.57 0.07 146.47 4,104.20 -0.29 -21.33 5,975,523.218 671,350.681 70°20'20.434 N 148°36'34.225 W 4,119.77 0.05 121.68 4,119.40 -0.31 -21.32 5,975,523.207 671,350.692 70°20'20.434 N 148°36'34.224 W 4,135.07 0.05 79.61 4,134.70 -0.31 -21.31 5,975,523.205 671,350.704 70°20'20.434 N 148°36'34.224 W 4,150.37 0.07 45.17 4,150.00 -0.30 -21.30 5,975,523.213 671,350.717 70°20'20.434 N 148°36'34.224 W 4,165.67 0.10 30.28 4,165.30 -0.28 -21.28 5,975,523.231 671,350.730 70°20'20.434 N 148°36'34.223 W 4,180.87 0.10 31.00 4,180.50 -0.26 -21.27 5,975,523.254 671,350.743 70°20'20.434 N 148°36'34.223 W 4,196.17 0.12 24.61 4,195.80 -0.23 -21.26 5,975,523.281 671,350.756 70°20'20.434 N 148°36'34.222 W 4,211.27 0.15 12.42 4,210.90 -0.20 -21.25 5,975,523.315 671,350.766 70°20'20.435 N 148°36'34.222 W 4,226.57 0.13 11.92 4,226.20 -0.16 -21.24 5,975,523.351 671,350.773 70°20'20.435 N 148°36'34.222 W 4,241.87 0.13 14.81 4,241.50 -0.13 -21.23 5,975,523.385 671,350.780 70°20'20.435 N 148°36'34.222 W 4,257.17 0.18 12.20 4,256.80 -0.09 -21.22 5,975,523.426 671,350.789 70°20'20.436 N 148°36'34.221 W 4,272.47 0.18 359.30 4,272.10 -0.04 -21.22 5,975,523.473 671,350.792 70°20'20.436 N 148°36'34.221 W 4,287.77 0.13 343.70 4,287.40 0.00 -21.22 5,975,523.514 671,350.786 70°20'20.437 N 148°36'34.221 W 4,303.07 0.12 339.08 4,302.70 0.03 -21.23 5,975,523.545 671,350.775 70°20'20.437 N 148°36'34.222 W'. 4,318.27 0.13 345.06 4,317.90 0.06 -21.24 5,975,523.577 671,350.764 70°20'20.437 N 148°36'34.222 W 4,333.57 0.17 351.27 4,333.20 0.10 -21.25 5,975,523.616 671,350.755 70°20'20.438 N 148°36'34.222 W 4,348.77 0.15 347.11 4,348.40 0.14 -21.26 5,975,523.657 671,350.747 70°20'20.438 N 148°36'34.222 W 4,364.07 0.10 344.45 4,363.70 0.18 -21.27 5,975,523.689 671,350.738 70°20'20.438 N 148°36'34.223 W 4,379.27 0.12 352.37 4,378.90 0.20 -21.27 5,975,523.718 671,350.731 70°20'20.439 N 148°36'34.223 W 4,394.47 0.15 358.27 4,394.10 0.24 -21.27 5,975,523.753 671,350.728 70°20'20.439 N 148°36'34.223 W 4,409.67 0.15 3.85 4,409.30 0.28 -21.27 5,975,523.793 671,350.728 70°20'20.439 N 148°36'34.223 W 4,424.97 0.15 6.48 4,424.60 0.32 -21.27 5,975,523.833 671,350.730 70°20'20.440 N 148°36'34.223 W 4,440.27 0.13 9.33 4,439.90 0.36 -21.26 5,975,523.870 671,350.735 70°20'20.440 N 148°36'34.223 W 4,455.57 0.12 32.04 4,455.20 0.39 -21.25 5,975,523.901 671,350.745 70°20'20.440 N 148°36'34.222 W 4,470.77 0.15 54.95 4,470.40 0.41 -21.23 5,975,523.927 671,350.769 70°20'20.441 N 148°36'34.222 W 4,485.97 0.18 56.89 4,485.60 0.44 -21.19 5,975,523.952 671,350.805 70°20'20.441 N 148°36'34.220 W 4,501.17 0.18 55.23 4,500.80 0.46 -21.15 5,975,523.979 671,350.844 70°20'20.441 N 148°36'34.219 W 4,516.47 0.20 55.28 4,516.10 0.49 -21.11 5,975,524.009 671,350.885 70°20'20.441 N 148°36'34.218 W 4,531.67 0.18 54.17 4,531.30 0.52 -21.07 5,975,524.039 671,350.926 70°20'20.442 N 148°36'34.217 W 4,546.97 0.18 56.26 4,546.60 0.55 -21.03 5,975,524.068 671,350.964 70°20'20.442 N 148°36'34.216 W 4,562.27 0.17 58.39 4,561.90 0.57 -20.99 5,975,524.094 671,351.003 70°20'20.442 N 148°36'34.215 W 4,577.47 0.17 59.60 4,577.10 0.60 -20.95 5,975,524.118 671,351.041 70°20'20.443 N 148°36'34.213 W 4,592.67 0.18 60.77 4,592.30 0.62 -20.91 5,975,524.142 671,351.081 70°20'20.443 N 148°36'34.212 W 4,607.87 0.18 61.82 4,607.50 0.64 -20.87 5,975,524.166 671,351.122 70°20'20.443 N 148°36'34.211 W 4,623.07 0.15 65.12 4,622.70 0.66 -20.83 5,975,524.186 671,351.161 70°20'20.443 N 148°36'34.210 W 4,638.37 0.13 69.13 4,638.00 0.68 -20.80 5,975,524.202 671,351.195 70°20'20.443 N 148°36'34.209 W 4,653.57 0.13 72.25 4,653.20 0.69 -20.76 5,975,524.214 671,351.227 70°20'20.443 N 148°36'34.208 W 4,668.87 0.13 73.42 4,668.50 0.70 -20.73 5,975,524.225 671,351.260 70°20'20.444 N 148°36'34.207 W 4,684.07 0.12 65.89 4,683.70 0.71 -20.70 5,975,524.237 671,351.291 70°20'20.444 N 148°36'34.206 W 4,699.37 0.08 74.86 4,699.00 0.72 -20.67 5,975,524.247 671,351.316 70°20'20.444 N 148°36'34.205 W 4,714.57 0.07 99.35 4,714.20 0.72 -20.66 5,975,524.249 671,351.335 70°20'20.444 N 148°36'34.205 W 4,729.87 0.07 106.69 4,729.50 0.72 -20.64 5,975,524.245 671,351.353 70°20'20.444 N 148°36'34.204 W 4,744.97 0.05 114.49 4,744.60 0.71 -20.62 5,975,524.240 671,351.368 70°20'20.444 N 148°36'34.204 W 4,759.97 0.05 134.10 4,759.60 0.70 -20.61 5,975,524.233 671,351.379 70°20'20.444 N 148°36'34.204 W 4,774.87 0.07 147.28 4,774.50 0.69 -20.60 5,975,524.221 671,351.389 70°20'20.443 N 148°36'34.203 W 4,789.77 0.08 150.31 4,789.40 0.68 -20.59 5,975,524.204 671,351.399 70°20'20.443 N 148°36'34.203 W 4,804.67 0.08 173.21 4,804.30 0.66 -20.59 5,975,524.185 671,351.406 70°20'20.443 N 148°36'34.203 W 4,819.67 0.08 182.66 4,819.30 0.63 -20.58 5,975,524.164 671,351.407 70°20'20.443 N 148°36'34.203 W 4,834.57 0.08 165.87 4,834.20 0.61 -20.58 5,975,524.144 671,351.410 70°20'20.443 N 148°36'34.203 W 4,849.57 0.08 159.72 4,849.20 0.59 -20.58 5,975,524.124 671,351.417 70°20'20.443 N 148°36'34.202 W 4,864.57 0.08 151.15 4,864.20 0.58 -20.57 5,975,524.105 671,351.426 70°20'20.442 N 148°36'34.202 W 4,879.57 0.08 143.91 4,879.20 0.56 -20.56 5,975,524.088 671,351.437 70°20'20.442 N 148°36'34.202 W 4,894.57 0.08 131.22 4,894.20 0.54 -20.54 5,975,524.073 671,351.452 70°20'20.442 N 148°36'34.201 W 4,909.57 0.07 116.01 4,909.20 0.53 -20.53 5,975,524.062 671,351.468 70°20'20.442 N 148°36'34.201 W 4,924.47 0.05 131.96 4,924.10 0.52 -20.51 5,975,524.054 671,351.481 70°20'20.442 N 148°36'34.201 W 12/9/2015 2:12:36PM Page 8 COMPASS 5000.1 Build 61 • 0 Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-128 @ 57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +EI-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 4,939.47 0.08 159.60 4,939.10 0.51 -20.50 5,975,524.040 671,351.490 70°20'20.442 N 148°36'34.200 W 4,954.47 0.12 178.61 4,954.10 0.48 -20.50 5,975,524.015 671,351.495 70°20'20.441 N 148°36'34.200 W 4,969.47 0.17 194.76 4,969.10 0.45 -20.51 5,975,523.977 671,351.490 70°20'20.441 N 148°36'34.200 W 4,984.37 0.23 203.46 4,984.00 0.40 -20.52 5,975,523.928 671,351.474 70°20'20.441 N 148°36'34.201 W 4,999.37 0.35 206.94 4,999.00 0.33 -20.56 5,975,523.859 671,351.443 70°20'20.440 N 148°36'34.202 W 5,014.37 0.52 207.26 5,014.00 0.23 -20.61 5,975,523.757 671,351.393 70°20'20.439 N 148°36'34.203 W 5,029.37 0.78 205.22 5,029.00 0.07 -20.68 5,975,523.602 671,351.322 70°20'20.437 N 148°36'34.206 W 5,044.37 1.20 200.65 5,044.00 -0.16 -20.78 5,975,523.361 671,351.229 70°20'20.435 N 148°36'34.208 W 5,059.37 1.78 195.79 5,058.99 -0.54 -20.90 5,975,522.987 671,351.118 70°20'20.431 N 148°36'34.212 W 5,074.37 2.42 191.70 5,073.98 -1.07 -21.03 5,975,522.450 671,351.003 70°20'20.426 N 148°36'34.216 W 5,089.37 3.02 187.41 5,088.96 -1.77 -21.14 5,975,521.745 671,350.904 70°20'20.419 N 148°36'34.219 W 5,104.37 3.63 184.41 5,103.94 -2.64 -21.23 5,975,520.878 671,350.836 70°20'20.411 N 148°36'34.222 W 5,119.37 4.25 183.37 5,118.90 -3.67 -21.30 5,975,519.849 671,350.791 70°20'20.401 N 148°36'34.224 W 5,134.47 4.82 182.64 5,133.96 -4.86 -21.36 5,975,518.656 671,350.756 70°20'20.389 N 148°36'34.225 W 5,149.47 5.37 182.11 5,148.90 -6.19 -21.42 5,975,517.324 671,350.731 70°20'20.376 N 148°36'34.227 W 5,164.47 5.93 182.22 5,163.82 -7.66 -21.47 5,975,515.847 671,350.709 70°20'20.361 N 148°36'34.229 W 5,179.37 6.52 182.79 5,178.64 -9.28 -21.54 5,975,514.232 671,350.675 70°20'20.345 N 148°36'34.231 W 5,194.37 7.08 183.27 5,193.53 -11.05 -21.64 5,975,512.457 671,350.621 70°20'20.328 N 148°36'34.233 W 5,209.37 7.65 183.41 5,208.41 -12.97 -21.75 5,975,510.535 671,350.553 70°20'20.309 N 148°36'34.237 W 5,224.37 8.20 183.60 5,223.26 -15.04 -21.88 5,975,508.469 671,350.474 70°20'20.289 N 148°36'34.240 W 5,239.47 8.80 183.94 5,238.20 -17.26 -22.02 5,975,506.239 671,350.378 70°20'20.267 N 148°36'34.245 W 5,254.47 9.48 184.31 5,253.01 -19.64 -22.20 5,975,503.860 671,350.261 70°20'20.244 N 148°36'34.250 W 5,269.57 10.17 184.49 5,267.88 -22.21 -22.39 5,975,501.287 671,350.122 70°20'20.218 N 148°36'34.256 W 5,284.57 10.78 184.51 5,282.63 -24.93 -22.61 5,975,498.564 671,349.970 70°20'20.192 N 148°36'34.262 W 5,299.57 11.32 184.65 5,297.36 -27.79 -22.84 5,975,495.694 671,349.806 70°20'20.163 N 148°36'34.269 W 5,314.17 11.80 184.99 5,311.66 -30.71 -23.08 5,975,492.774 671,349.626 70°20'20.135 N 148°36'34.276 W 5,333.77 12.57 185.49 5,330.82 -34.83 -23.46 5,975,488.647 671,349.342 70°20'20.094 N 148°36'34.287 W 5,359.77 13.43 185.83 5,356.15 -40.65 -24.04 5,975,482.816 671,348.898 70°20'20.037 N 148°36'34.304 W 5,389.27 13.98 186.16 5,384.81 -47.60 -24.77 5,975,475.851 671,348.327 70°20'19.969 N 148°36'34.325 W 5,423.17 14.57 186.70 5,417.66 -55.91 -25.71 5,975,467.526 671,347.580 70°20'19.887 N 148°36'34.352 W 5,457.67 15.30 187.10 5,451.00 -64.73 -26.77 5,975,458.677 671,346.713 70°20'19.800 N 148°36'34.384 W 5,491.87 16.13 187.39 5,483.92 -73.92 -27.94 5,975,449.465 671,345.755 70°20'19.710 N 148°36'34.418 W 5,525.97 16.87 188.17 5,516.62 -83.52 -29.26 5,975,439.843 671,344.662 70°20'19.615 N 148°36'34.456 W 5,559.97 17.57 189.71 5,549.09 -93.46 -30.82 5,975,429.868 671,343.323 70°20'19.518 N 148°36'34.502 W 5,594.17 18.30 191.32 5,581.63 -103.81 -32.75 5,975,419.475 671,341.636 70°20'19.416 N 148°36'34.558 W 5,628.27 18.93 192.26 5,613.95 -114.47 -34.97 5,975,408.773 671,339.655 70°20'19.311 N 148°36'34.623 W 5,662.37 19.42 192.68 5,646.15 -125.40 -37.39 5,975,397.785 671,337.486 70°20'19.203 N 148°36'34.694 W 5,696.37 19.82 192.87 5,678.18 -136.54 -39.92 5,975,386.597 671,335.217 70°20'19.094 N 148°36'34.767 W 5,730.47 20.20 192.95 5,710.22 -147.91 -42.52 5,975,375.168 671,332.871 70°20'18.982 N 148°36'34.843 W 5,764.57 20.50 193.04 5,742.19 -159.46 -45.19 5,975,363.556 671,330.469 70°20'18.868 N 148°36'34.921 W 5,798.67 20.82 193.03 5,774.10 -171.18 -47.90 5,975,351.777 671,328.024 70°20'18.753 N 148°36'35.001 W 5,832.77 21.13 192.92 5,805.94 -183.08 -50.64 5,975,339.823 671,325.557 70°20'18.636 N 148°36'35.081 W 5,866.87 21.45 192.93 5,837.71 -195.15 -53.41 5,975,327.696 671,323.064 70°20'18.517 N 148°36'35.162 W 5,900.97 21.77 192.91 5,869.42 -207.39 -56.22 5,975,315.395 671,320.537 70°20'18.397 N 148°36'35.244 W 5,935.07 22.02 192.81 5,901.06 -219.78 -59.05 5,975,302.938 671,317.991 70°20'18.275 N 148°36'35.326 W 5,969.07 22.33 192.75 5,932.54 -232.30 -61.89 5,975,290.362 671,315.439 70°20'18.152 N 148°36'35.409 W 6,003.17 22.72 192.72 5,964.04 -245.04 -64.77 5,975,277.558 671,312.851 70°20'18.027 N 148°36'35.493 W 6,037.67 23.17 192.71 5,995.81 -258.16 -67.73 5,975,264.375 671,310.192 70°20'17.898 N 148°36'35.580 W 6,072.17 23.67 192.74 6,027.47 -271.54 -70.75 5,975,250.935 671,307.478 70°20'17.766 N 148°36'35.668 W 6,106.77 24.12 192.81 6,059.10 -285.21 -73.85 5,975,237.200 671,304.692 70°20'17.632 N 148°36'35.758 W 6,141.27 24.48 192.88 6,090.55 -299.05 -77.01 5,975,223.291 671,301.853 70°20'17.496 N 148°36'35.851 W 6,175.27 25.02 192.80 6,121.42 -312.93 -80.17 5,975,209.344 671,299.008 70°20'17.359 N 148°36'35.943 W 6,209.27 25.67 192.66 6,152.15 -327.12 -83.38 5,975,195.079 671,296.127 70°20'17.219 N 148°36'36.037 W 6,243.27 26.18 192.55 6,182.73 -341.63 -86.62 5,975,180.504 671,293.216 70°20'17.077 N 148°36'36.131 W 6,277.37 26.65 192.45 6,213.27 -356.44 -89.90 5,975,165.623 671,290.272 70°20'16.931 N 148°36'36.227 W 12/9/2015 2:12:36PM Page 9 COMPASS 5000.1 Build 61 • • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-12B @ 57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +EI-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 6,311.47 27.18 192.37 6,243.67 -371.51 -93.22 5,975,150.477 671,287.301 70°20'16.783 N 148°36'36.324 W 6,345.47 27.72 192.28 6,273.85 -386.83 -96.57 5,975,135.093 671,284.306 70°20'16.632 N 148°36'36.422 W 6,379.47 28.13 192.16 6,303.89 -402.39 -99.94 5,975,119.460 671,281.293 70°20'16.479 N 148°36'36.520 W 6,413.47 28.25 192.07 6,333.85 -418.09 -103.31 5,975,103.684 671,278.282 70°20'16.325 N 148°36'36.619 W 6,447.47 28.15 192.01 6,363.82 -433.81 -106.66 5,975,087.899 671,275.291 70°20'16.170 N 148°36'36.717 W 6,481.47 28.05 191.92 6,393.81 -449.47 -109.98 5,975,072.162 671,272.330 70°20'16.016 N 148°36'36.814 W 6,515.57 27.98 191.80 6,423.92 -465.15 -113.27 5,975,056.417 671,269.397 70°20'15.862 N 148°36'36.910 W 6,549.67 27.88 191.75 6,454.04 -480.78 -116.53 5,975,040.712 671,266.496 70°20'15.708 N 148°36'37.005 W 6,583.67 27.77 191.64 6,484.11 -496.32 -119.75 5,975,025.102 671,263.635 70°20'15.555 N 148°36'37.099 W 6,617.77 27.70 191.55 6,514.29 -511.87 -122.94 5,975,009.489 671,260.802 70°20'15.402 N 148°36'37.192 W 6,651.97 27.63 191.51 6,544.58 -527.43 -126.11 5,974,993.863 671,257.985 70°20'15.249 N 148°36'37.285 W 6,686.07 27.48 191.42 6,574.82 -542.89 -129.25 5,974,978.336 671,255.204 70°20'15.097 N 148°36'37.376 W 6,720.17 27.35 191.42 6,605.09 -558.28 -132.35 5,974,962.880 671,252.448 70°20'14.946 N 148°36'37.467 W 6,754.37 27.10 191.43 6,635.50 -573.61 -135.45 5,974,947.479 671,249.700 70°20'14.795 N 148°36'37.558 W 6,788.37 26.80 191.43 6,665.81 -588.72 -138.51 5,974,932.310 671,246.992 70°20'14.647 N 148°36'37.647 W 6,822.77 26.57 191.40 6,696.54 -603.86 -141.57 5,974,917.102 671,244.282 70'20'14.498 N 148°36'37.736 W 6,856.97 26.43 191.35 6,727.15 -618.82 -144.57 5,974,902.078 671,241.615 70°20'14.351 N 148°36'37.824 W 6,891.17 26.30 191.29 6,757.79 -633.71 -147.56 5,974,887.123 671,238.975 70°20'14.204 N 148°36'37.911 W' 6,925.37 26.12 191.21 6,788.47 -648.53 -150.50 5,974,872.246 671,236.368 70°20'14.058 N 148°36'37.997 W 6,959.57 25.90 191.18 6,819.21 -663.24 -153.41 5,974,857.472 671,233.793 70°20'13.914 N 148°36'38.082 W'I 6,993.87 25.67 191.13 6,850.10 -677.88 -156.30 5,974,842.772 671,231.242 70°20'13.770 N 148°36'38.166 W 7,028.07 25.45 191.11 6,880.95 -692.36 -159.15 5,974,828.233 671,228.728 70°20'13.627 N 148°36'38.249 W I 7,062.37 25.23 191.08 6,911.95 -706.76 -161.97 5,974,813.767 671,226.233 70°20'13.486 N 148°36'38.332 W 7,096.67 25.03 191.01 6,943.00 -721.06 -164.76 5,974,799.412 671,223.770 70°20'13.345 N 148°36'38.413 W 7,130.97 24.75 191.09 6,974.12 -735.23 -167.53 5,974,785.185 671,221.328 70°20'13.206 N 148°36'38.494 W 7,165.17 24.50 191.21 7,005.21 -749.21 -170.29 5,974,771.145 671,218.893 70°20'13.068 N 148°36'38.575 W 7,199.37 24.32 191.16 7,036.35 -763.07 -173.03 5,974,757.222 671,216.469 70°20'12.932 N 148°36'38.655 W 7,233.57 24.20 191.16 7,067.53 -776.86 -175.75 5,974,743.378 671,214.065 70°20'12.796 N 148°36'38.734 W 7,267.77 24.15 191.26 7,098.73 -790.60 -178.47 5,974,729.582 671,211.658 70°20'12.661 N 148°36'38.814 W 7,301.97 24.13 191.27 7,129.94 -804.32 -181.20 5,974,715.806 671,209.240 70°20'12.526 N 148°36'38.894 W 7,336.17 24.12 191.27 7,161.15 -818.03 -183.93 5,974,702.039 671,206.822 70°20'12.391 N 148°36'38.973 W 7,370.37 24.00 191.23 7,192.38 -831.70 -186.65 5,974,688.307 671,204.415 70°20'12.257 N 148°36'39.053 W 7,404.57 23.82 191.22 7,223.64 -845.30 -189.35 5,974,674.653 671,202.029 70°20'12.123 N 148°36'39.132 W 7,438.77 23.60 191.21 7,254.96 -858.79 -192.03 5,974,661.107 671,199.663 70°20'11.991 N 148°36'39.210 W 7,472.97 23.32 191.17 7,286.33 -872.14 -194.67 5,974,647.695 671,197.327 70°20'11.859 N 148°36'39.287 W 7,506.77 23.00 191.21 7,317.41 -885.18 -197.25 5,974,634.599 671,195.046 70°20'11.731 N 148°36'39.362 W 7,540.37 22.73 191.27 7,348.37 -897.99 -199.79 5,974,621.740 671,192.795 70°20'11.605 N 148°36'39.436 W', 7,573.87 22.50 191.36 7,379.29 -910.62 -202.32 5,974,609.055 671,190.557 70°20'11.481 N 148°36'39.510 W 7,607.47 22.23 191.45 7,410.36 -923.15 -204.85 5,974,596.469 671,188.316 70°20'11.358 N 148°36'39.584 W'' 7,641.07 22.00 191.51 7,441.49 -935.55 -207.37 5,974,584.019 671,186.083 70°20'11.236 N 148°36'39.658 W 7,674.57 21.77 191.57 7,472.58 -947.78 -209.86 5,974,571.731 671,183.865 70°20'11.115 N 148°36'39.731 W 7,708.27 21.48 191.53 7,503.91 -959.95 -212.35 5,974,559.510 671,181.657 70°20'10.996 N 148°36'39.803 W 7,741.77 21.22 191.47 7,535.11 -971.90 -214.78 5,974,547.507 671,179.500 70°20'10.878 N 148°36'39.874 W 7,775.37 20.95 191.43 7,566.46 -983.75 -217.18 5,974,535.609 671,177.372 70°20'10.762 N 148°36'39.944 W 7,809.07 20.70 191.47 7,597.95 -995.49 -219.56 5,974,523.817 671,175.263 70°20'10.646 N 148°36'40.014 W 1 7,842.67 20.53 191.73 7,629.40 -1,007.08 -221.94 5,974,512.177 671,173.149 70°20'10.532 N 148°36'40.083 W 7,876.37 20.37 191.95 7,660.98 -1,018.60 -224.35 5,974,500.602 671,170.998 70°20'10.419 N 148°36'40.154 W 7,910.07 20.22 192.09 7,692.59 -1,030.04 -226.79 5,974,489.118 671,168.826 70°20'10.306 N 148°36'40.225 W 7,943.77 20.02 192.36 7,724.23 -1,041.37 -229.24 5,974,477.736 671,166.631 70°20'10.195 N 148°36'40.296 W 7,977.47 19.75 192.60 7,755.92 -1,052.56 -231.72 5,974,466.491 671,164.411 70°20'10.085 N 148°36'40.369 W 8,011.17 19.47 192.67 7,787.67 -1.063.59 -234.19 5,974,455.402 671,162.190 70°20'9.976 N 148°36'40.441 W 8,044.77 19.18 192.73 7,819.37 -1,074.44 -236.64 5,974,444.502 671,159.994 70°20'9.870 N 148°36'40.512 W 8,078.47 18.98 192.79 7,851.22 -1,085.19 -239.07 5,974,433.706 671,157.807 70°20'9.764 N 148°36'40.583 W 8,112.17 19.02 192.90 7,883.09 -1,095.88 -241.51 5,974,422.957 671,155.613 70°20'9.659 N 148°36'40.655 W 8,125.00 19.12 192.95 7,895.21 -1,099.97 -242.45 5,974,418.851 671,154.769 70°20'9.619 N 148°36'40.682 W 12/9/2015 2 12 36PM Page 10 COMPASS 5000.1 Build 61 0 0 Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-12B @ 57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +EI-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 8,152.15 19.99 197.26 7,920.80 -1,108.73 -244.82 5,974,410.034 671,152.597 70°20'9.532 N 148°36'40.751 W 8,181.42 19.48 201.99 7,948.35 -1,118.04 -248.13 5,974,400.658 671,149.498 70°20'9.441 N 148°36'40.848 W 8,208.15 19.22 206.33 7,973.57 -1,126.11 -251.76 5,974,392.501 671,146.064 70°20'9.361 N 148°36'40.954 W 8,243.67 18.92 212.07 8,007.14 -1,136.24 -257.41 5,974,382.255 671,140.646 70°20'9.262 N 148°36'41.119 W 8,274.98 18.82 222.68 8,036.78 -1,144.25 -263.53 5,974,374.101 671,134.710 70°20'9.183 N 148°36'41.298 W 8,296.16 18.72 230.83 8,056.84 -1,148.91 -268.48 5,974,369.330 671,129.867 70°20'9.137 N 148°36'41.442 W 8,394.03 17.11 233.02 8,149.96 -1,167.49 -292.16 5,974,350.213 671,106.620 70°20'8.954 N 148°36'42.134 W 8,467.13 17.55 242.17 8,219.76 -1,179.11 -310.50 5,974,338.182 671,088.551 70°20'8.840 N 148°36'42.669 W 8,495.41 17.56 245.77 8,246.72 -1,182.85 -318.16 5,974,334.267 671,080.978 70°20'8.803 N 148°36'42.893 W 8,529.35 17.69 246.80 8,279.07 -1,186.98 -327.57 5,974,329.920 671,071.667 70°20'8.763 N 148°36'43.168 W 8,560.19 18.03 252.51 8,308.42 -1,190.26 -336.43 5,974,326.438 671,062.886 70°20'8.730 N 148°36'43.426 W 8,587.08 18.55 257.42 8,333.95 -1,192.45 -344.57 5,974,324.071 671,054.794 70°20'8.709 N 148°36'43.664 W 8,622.32 19.30 264.09 8,367.29 -1,194.27 -355.84 5,974,321.993 671,043.574 70°20'8.691 N 148°36'43.993 W 8,645.00 19.83 266.87 8,388.66 -1,194.86 -363.41 5,974,321.224 671,036.021 70°20'8.685 N 148°36'44.214 W 8,669.87 19.83 267.85 8,412.06 -1,195.25 -371.83 5,974,320.643 671,027.605 70°20'8.681 N 148°36'44.460 W 8,708.44 20.09 269.34 8,448.31 -1,195.57 -384.99 5,974,320.021 671,014.455 70°20'8.678 N 148°36'44.845 W 8,737.27 19.82 277.43 8,475.42 -1,195.00 -394.79 5,974,320.372 671,004.646 70°20'8.684 N 148°36'45.131 W 8,763.14 18.68 288.27 8,499.85 -1,193.13 -403.08 5,974,322.048 670,996.320 70°20'8.702 N 148°36'45.373 W 8,800.83 17.16 305.86 8,535.74 -1,187.98 -413.33 5,974,326.966 670,985.960 70°20'8.753 N 148°36'45.672 W 8,829.36 17.03 316.62 8,563.01 -1,182.47 -419.61 5,974,332.324 670,979.554 70°20'8.807 N 148°36'45.856 W 8,860.08 17.59 328.26 8,592.35 -1,175.25 -425.14 5,974,339.415 670,973.857 70°20'8.878 N 148°36'46.017 W 8,895.68 20.51 341.92 8,626.01 -1,164.74 -429.91 5,974,349.813 670,968.850 70°20'8.981 N 148°36'46.157 W 8,922.34 22.54 350.87 8,650.82 -1,155.26 -432.17 5,974,359.247 670,966.373 70°20'9.075 N 148°36'46.223 W 8,950.43 24.13 355.85 8,676.61 -1,144.21 -433.44 5,974,370.258 670,964.851 70°20'9.183 N 148°36'46.260 W 8,991.90 27.57 5.29 8,713.94 -1,126.19 -433.17 5,974,388.282 670,964.710 70°20'9.361 N 148°36'46.252 W 9,024.25 30.94 13.28 8,742.17 -1,110.63 -430.57 5,974,403.895 670,966.956 70°20'9.514 N 148°36'46.176 W 9,050.24 33.45 16.77 8,764.17 -1,097.26 -426.96 5,974,417.337 670,970.252 70°20'9.645 N 148°36'46.071 W 9,081.51 37.95 20.83 8,789.56 -1,080.02 -421.06 5,974,434.716 670,975.765 70°20'9.815 N 148°36'45.898 W 9,114.95 41.03 23.52 8,815.37 -1,060.33 -413.02 5,974,454.574 670,983.352 70°20'10.008 N 148°36'45.663 W 9,142.44 43.83 26.04 8,835.65 -1,043.50 -405.23 5,974,471.577 670,990.746 70°20'10.174 N 148°36'45.436 W 9,183.94 46.67 29.00 8,864.87 -1,017.38 -391.60 5,974,498.000 671,003.775 70°20'10.431 N 148°36'45.038 W 9,207.56 49.39 30.63 8,880.67 -1,002.15 -382.87 5,974,513.427 671,012.159 70°20'10.580 N 148°36'44.783 W 9,238.45 52.83 32.16 8,900.06 -981.64 -370.34 5,974,534.222 671,024.215 70°20'10.782 N 148°36'44.417 W 9,274.65 57.75 32.52 8,920.66 -956.50 -354.42 5,974,559.710 671,039.552 70°20'11.029 N 148°36'43.952 W 9,306.87 62.86 32.69 8,936.62 -932.93 -339.35 5,974,583.616 671,054.086 70°20'11.261 N 148°36'43.512 W 9,337.79 68.26 32.31 8,949.41 -909.20 -324.23 5,974,607.687 671,068.656 70°20'11.495 N 148°36'43.071 W 9,367.65 73.10 32.79 8,959.28 -885.46 -309.07 5,974,631.770 671,083.266 70°20'11.728 N 148°36'42.628 W 9,399.75 78.82 33.44 8,967.07 -859.39 -292.06 5,974,658.221 671,099.672 70°20'11.985 N 148°36'42.131 W 9,435.57 84.37 34.36 8,972.30 -829.99 -272.31 5,974,688.062 671,118.751 70°20'12.274 N 148°36'41.554 W 9,466.24 89.81 35.63 8,973.86 -804.91 -254.75 5,974,713.537 671,135.733 70°20'12.520 N 148°36'41.041 W 9,489.01 93.03 37.96 8,973.30 -786.68 -241.11 5,974,732.067 671,148.943 70°20'12.700 N 148°36'40.643 W 9,521.50 95.63 37.36 8,970.84 -761.04 -221.32 5,974,758.156 671,168.143 70°20'12.952 N 148°36'40.065 W 9,550.70 99.80 38.64 8,966.92 -738.24 -203.51 5,974,781.352 671,185.425 70°20'13.176 N 148°36'39.545 W 9,585.26 101.30 44.26 8,960.59 -712.78 -181.04 5,974,807.315 671,207.313 70°20'13.426 N 148°36'38.889 W I 9,617.95 101.25 48.31 8,954.20 -690.63 -157.87 5,974,829.987 671,229.966 70°20'13.644 N 148°36'38.212 W 9,642.14 100.80 51.14 8,949.57 -675.28 -139.76 5,974,845.743 671,247.723 70°20'13.795 N 148°36'37.683 W 9,679.20 100.62 54.35 8,942.68 -653.24 -110.78 5,974,868.439 671,276.190 70°20'14.012 N 148°36'36.837 W 9,709.44 99.49 57.34 8,937.40 -636.53 -86.14 5,974,885.710 671,300.437 70°20'14.176 N 148°36'36.117 W 9,742.49 99.24 58.07 8,932.02 -619.11 -58.57 5,974,903.757 671,327.595 70°20'14.348 N 148°36'35.312 W 9,769.30 98.93 58.31 8,927.79 -605.15 -36.08 5,974,918.221 671,349.766 70°20'14.485 N 148°36'34.655 W 9,800.56 98.81 55.83 8,922.97 -588.36 -10.15 5,974,935.596 671,375.295 70°20'14.650 N 148°36'33.898 W 9,829.68 99.99 54.91 8,918.21 -572.04 13.48 5,974,952.456 671,398.553 70°20'14.811 N 148°36'33.208 W 9,866.81 99.49 53.61 8,911.93 -550.66 43.19 5,974,974.503 671,427.757 70°20'15.021 N 148°36'32.340 W 9,897.02 99.86 52.06 8,906.85 -532.67 66.92 5,974,993.030 671,451.070 70°20'15.198 N 148°36'31.647 W 9,923.86 99.11 50.25 8,902.43 -516.07 87.53 5,975,010.099 671,471.300 70°20'15.361 N 148°36'31.045 W 12/9/2015 2:12.'36PM Page 11 COMPASS 5000.1 Build 61 • i Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-12B @ 57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +EI-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 9,963.78 98.61 48.42 8,896.28 -490.37 117.45 5,975,036.476 671,500.621 70°20'15.614 N 148°36'30.171 W 9,996.33 96.56 47.01 8,891.98 -468.66 141.32 5,975,058.722 671,523.984 70°20'15.827 N 148°36'29.474 W 10,020.26 94.02 47.23 8,889.78 -452.45 158.78 5,975,075.329 671,541.067 70°20'15.987 N 148°36'28.964 W 10,056.02 94.26 45.68 8,887.20 -427.88 184.63 5,975,100.482 671,566.349 70°20'16.229 N 148°36'28.209 W 10,088.87 94.33 43.73 8,884.74 -404.60 207.67 5,975,124.282 671,588.852 70°20'16.457 N 148°36'27.536 W 10,120.92 94.07 41.30 8,882.39 -381.04 229.27 5,975,148.327 671,609.905 70°20'16.689 N 148°36'26.905 W 10,145.92 94.39 39.09 8,880.54 -361.99 245.36 5,975,167.732 671,625.555 70°20'16.876 N 148°36'26.435 W 10,184.04 93.34 36.40 8,877.97 -331.92 268.64 5,975,198.326 671,648.139 70°20'17.172 N 148°36'25.755 W 10,215.13 93.15 34.10 8,876.21 -306.58 286.55 5,975,224.074 671,665.467 70°20'17.421 N 148°36'25.232 W 10,247.00 95.55 31.25 8,873.80 -279.83 303.71 5,975,251.201 671,682.005 70°20'17.684 N 148°36'24.731 W 10,273.03 95.99 30.89 8,871.18 -257.65 317.07 5,975,273.681 671,694.859 70°20'17.903 N 148°36'24.341 W 10,303.29 96.18 31.11 8,867.97 -231.86 332.57 5,975,299.819 671,709.762 70°20'18.156 N 148°36'23.888 W 10,338.94 94.33 32.28 8,864.71 -201.65 351.22 5,975,330.439 671,727.716 70°20'18.453 N 148°36'23.343 W 10,368.91 94.76 32.84 8,862.33 -176.47 367.30 5,975,355.978 671,743.214 70°20'18.701 N 148°36'22.873 W 10,394.40 95.75 32.49 8,860.00 -155.11 381.00 5,975,377.652 671,756.421 70°20'18.911 N 148°36'22.473 W 10,432.11 95.50 30.96 8,856.30 -123.19 400.73 5,975,410.013 671,775.418 70°20'19.225 N 148°36'21.897 W 10,468.38 95.87 30.85 8,852.71 -92.22 419.27 5,975,441.393 671,793.242 70°20'19.530 N 148°36'21.355 W 10,492.43 95.88 30.98 8,850.25 -71.69 431.56 5,975,462.192 671,805.060 70°20'19.731 N 148°36'20.996 W 10,533.46 94.70 32.24 8,846.46 -36.90 452.98 5,975,497.463 671,825.671 70°20'20.074 N 148°36'20.371 W 10,562.28 94.76 32.16 8,844.09 -12.60 468.28 5,975,522.109 671,840.415 70°20'20.313 N 148°36'19.924 W 10,585.55 93.58 32.67 8,842.39 6.99 480.72 5,975,541.978 671,852.404 70°20'20.505 N 148°36'19.560 W 10,678.51 92.72 32.93 8,837.29 85.01 531.00 5,975,621.122 671,900.885 70°20'21.273 N 148°36'18.092 W 10,688.09 92.47 33.10 8,836.85 93.04 536.22 5,975,629.263 671,905.915 70°20'21.352 N 148°36'17.939 W 10,780.60 93.21 33.66 8,832.27 170.19 587.05 5,975,707.554 671,954.969 70°20'22.110 N 148°36'16.454 W 10,876.53 91.42 33.73 8,828.39 249.94 640.23 5,975,788.488 672,006.303 70°20'22.895 N 148°36'14.901 W 10,963.00 91.72 34.01 8,826.03 321.71 688.40 5,975,861.335 672,052.820 70°20'23.600 N 148°36'13.494 W 11,062.55 92.22 32.74 8,822.60 404.79 743.13 5,975,945.641 672,105.633 70°20'24.417 N 148°36'11.895 W 11,128.33 93.76 30.62 8,819.17 460.69 777.62 5,976,002.307 672,138.841 70°20'24.967 N 148°36'10.887 W 11,161.71 94.51 28.95 8,816.76 489.58 794.16 5,976,031.570 672,154.713 70°20'25.251 N 148°36'10.404 W 11,258.43 94.88 29.80 8,808.85 573.58 841.45 5,976,116.623 672,200.062 70°20'26.077 N 148°36'9.022 W 11,305.00 94.88 29.80 8,804.89 613.85 864.51 5,976,157.403 672,222.194 70°20'26.473 N 148°36'8.348 W 12/9/2015 2'12'36PM Page 12 COMPASS 5000.1 Build 61 • • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay ND Reference: K-12B©57.46usft(Doyon 14) Site: PB K Pad MD Reference: K-128 @ 57.46usft(Doyon 14) Well: K-12 North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-12B Database: EDM R5K-Alaska PROD-ANCP1 Targets Target Name -hit/miss target Dip Angle Dip Dir. ND +NI-S +E/-W Northing Easting -Shape (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude K-12B Poly 0.00 0.00 8,931.46 -840.11 -182.26 5,974,680.000 671,209.000 70°20'12.174 N 148°36'38.924 W -actual wellpath misses target center by 89.74usft at 9482.51 usft MD(8973.59 TVD,-791.82 N,-245.08 E) -Polygon Point 1 8,931.46 1,667.87 992.44 5,976,370.00 672,163.00 Point2 8,931.46 1,471.12 1,241.03 5,976,179.00 672,416.00 Point 3 8,931.46 482.82 627.24 5,975,177.00 671,825.00 Point4 8,931.46 -207.04 86.30 5,974,475.00 671,300.00 Point 5 8,931.46 48.49 -195.96 5,974,724.00 671,012.00 Point 6 8,931.46 635.01 358.63 5,975,323.00 671,553.00 . K-12B Flt 3 8900ss 0.00 0.00 8,957.46 1,088.22 -169.19 5,976,608.000 671,178.000 70°20'31.139 N 148°36'38.544 W -actual wellpath misses target center by 1142.10usft at 11199.16usft MD(8813.77 TVD,522.19 N,812.33 E) -Polygon Point 1 8,957.46 0.00 0.00 5,976,608.00 671,178.00 Point 2 8,957.46 -258.44 1,459.57 5,976,383.00 672,643.00 K-129 Flt 4 8900ss 0.00 0.00 8,957.46 853.19 1,228.90 5,976,405.000 672,581.000 70°20'28.827 N 148°35 57.703 W -actual wellpath misses target center by 461.90usft at 11305.00usft MD(8804.89 TVD,613.85 N,864.51 E) -Polygon Point 1 8,957.46 0.00 0.00 5,976,405.00 672,581.00 Point 2 8,957.46 -870.75 64.12 5,975,536.00 672,665.00 K-12B Flt 1 8900ss 0.00 0.00 8,957.46 97.56 -591.96 5,975,608.000 670,778.000 70°20'21.396 N 148°36'50.892 W -actual wellpath misses target center by 891.49usft at 9699.56usft MD(8939.06 TVD,-641.86 N,-94.30 E) -Polygon Point 1 8,957.46 0.00 0.00 5,975,608.00 670,778.00 Point2 8,957.46 -437.14 656.22 5,975,186.00 671,444.00 Point 3 8,957.46 -986.10 1,171.85 5,974,649.00 671,972.00 Point4 8,957.46 -437.14 656.22 5,975,186.00 671,444.00 K-12B Flt 2 8900ss 0.00 0.00 8,957.46 16218 125.75 5,975,689.000 671,494.000 70°20'22.032 N 148°36'29.929 W -actual wellpath misses target center by 398.54usft at 10521.26usft MD(8847.50 TVD.-47.20 N,446.53 E) -Polygon Point 1 8,957.46 0.00 0.00 5,975,689.00 671,494.00 Point 2 8,957.46 -239.17 222.61 5,975,455.00 671,722.00 Point 3 8,957.46 -404.79 509.92 5,975,296.00 672,013.00 Point 4 8,957.46 -767.71 763.71 5,974,939.00 672,275.00 Point 5 8,957.46 -404.79 509.92 5,975,296.00 672,013.00 Point 6 8,957.46 -239.17 222.61 5,975,455.00 671,722.00 Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (usft) (usft) Name (in) (in) 2,695.67 2,695.32 13 3/8" 13.375 17.500 8.671.11 8,413.23 DRILLING LINER 1 7.000 8.500 11,303.00 8,805.06 PRODUCTION LINER 1 4.500 6.000 Checked By: Approved By: Date: 12/9/2015 2:12•36PM Page 13 COMPASS 5000.1 Build 61 STATE OF ALASKA LASKA OIL AND GAS CONSERVATION COMMIS ON WELL OMPLETION OR RECOMPLETION REPORT AND LOG la. Well Status: Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 ' Suspended 0 lb.Well Class: 20AAC 25.105 20AAC 25.110 Development 0 Exploratory ❑ GINJ 0 WINJ 0 WAG 0 WDSPL 0 No.of Completions: Zero • Service 0 Stratigraphic Test 0 2. Operator Name: 6. Date Comp.,Susp.,or Aband.: 14.Permit to Drill Number/Sundry BP Exploration(Alaska),Inc . 11/9/2015 • 209-143 • 315-618 3. Address: 7. Date Spudded: 1,5. API Number: P.O.Box 196612 Anchorage,AK 99519-6612 5/4/2010 • 50-029-21759-02-00 • 4a. Location of Well(Governmental Section): 8. Date TD Reached: 16. Well Name and Number: 5/13/2010 • PBU K-12B • Surface: 1695'FNL,1110'FWL,Sec.04,T11N,R14E,UM • 9 Ref Elevations KB 57-46 17. Field/Pool(s): Top of Productive Interval: 2646'FNL,756'FWL,Sec.04,T11N,R14E,UM GL 23.76 , BF 24.96 PRUDHOE BAY,PRUDHOE OIL • Total Depth: 1081'FNL,1976'FVUL,Sec.04,T11N,R14E,UM 10. Plug Back Depth(MD/TVD): 18. Property Designation: 8815'/8549' ADL 028303 4b. 4b.Location of Well(State Base Plane Coordinates,NAD 27): 11. Total Depth(MD/TVD): 19. Land Use Permit: Surface:x- 671372 • y- 5975524 • Zone - ASP 4 11305/8805' • 95-001 TPI: x- 671042 y- 5974564 Zone - ASP 4 12. SSSV Depth(MD/TVD): 20 Thickness of Permafrost MD/TVD: Total Depth:x- 672222 y- 5976158 Zone - ASP 4 16544 1900'(approx.) 5. Directional or Inclination Survey: Yes ❑ (attached) No 0 13. Water Depth.if Offshore: 21. Re-drill/Lateral Top Window MD/TVD: Submit electronic and printed information per 20 AAC 25.050 - N/A (ft MSL) 8125'/7895' • 22. Logs Obtained List all logs run and,pursuant to AS 31.05.030 and 20 MC 25.071,submit all electronic data and printed logs within 90 days of completion, suspension,or abandonment,whichever occurs first.Types of logs to be listed include,but are not limited to:mud log,spontaneous potential,gamma ray,caliper, resistivity,porosity,magnetic resonance,dipmeter,formation tester,temperature,cement evaluation,casing collar locator,jewelry,and perforation record. Acronyms may be used.Attach a separate page if necessary DIR/GR/RES,DIR/GR/RES/NEU/DEN 23. CASING,LINER AND CEMENTING RECORD CASING WT.PER GRADE SETTING DEPTH MD SETTING DEPTH TVD HOLE SIZE CEMENTING RECORD AMOUNT FT. PULLED TOP BOTTOM TOP BOTTOM 20" 36' 116' 36' 116' 8 cu yds Concrete 13-3/8" 72# L-80i8-95 35' 2696' 35' 2696' 17-1/2" 1860 cu ft Arctic Set III,Tob Job:267 cu ft AS 9-5/8" 47# L-80 33' 8125' 33' 7895' 12-1/4" 1154 cu ft Class'G',300 cu ft AS I 7" 29#/26# L-80 7952' 7979' 7732' 7758' 8-1/2" 162 cu ft Class'G' 4-1/2" 12.6# L-80 8500' 11303' 8251' 8805' 6-1/8" 348 cu ft Class'G' 24. Open to production or injection? Yes 0 No 0 25. TUBING RECORD If Yes,list each interval open(MD/TVD of Top ndd�fottom;Perforation GRADE DEPTH SET(MD) PACKER SET(MD/TV Size and Number): FEB 0 4-1/2"12.6#13Cr85 8508' 8394'/8150' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. RECEIVED Was hydraulic fracturing used during completion? Yes El No Per 20 AAC 25.283(i)(2)attach electronic and printed information DEC 0 8 2015 DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED ADCC-w 8815' Set Whipstock 27. PRODUCTION TEST Date First Production: Not on Production Method of Operation(Flowing,gas lift,etc.):N/A Date of Test: Hours Tested: Production for Oil-Bbl: Gas-MCF: Water-Bbl: Choke Size: Gas-Oil Ratio: Test Period ...D Flow Tubing Casing Press: Calculated Oil-Bbl: Gas-MCF: Water-Bbl: Oil Gravity-API(corn): Press 24 Hour Rate ```': Form 10-407 Revised 11/2015 CONTINUED ON PAGE 2 Submit ORIGINAL only VII- is/a3/1s - (���' j-- RBDMSQ DEC 0 9 2015 z f ,z . (5— ✓i CJ 28. CORE DATA Conventional Core(s) Yes LI No Q • Sidewall Cores Yes 0 No Q • If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed).Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 25.071. 29. GEOLOGIC MARKERS(List all formations and markers encountered): 30. FORMATION TESTS NAME MD TVD Permafrost-Top Well Tested? Yes ❑ No Q Permafrost-Base If yes,list intervals and formations tested,briefly summarizing test results.Attach Top of Productive Interval 9281' 8924' separate sheets to this form,if needed,and submit detailed test information per 20 AAC 25.071. Base HRZ 8045' 7820' LCU 8072' 7845' Sag River 8672' 8414' Shublik A 8724' 8463' Sadlerochit-Zone 4 8798' 8533' CGL-Zone 3 8896' 8626' Base of CGL-Zone 2C 8967' 8692' 23SB-Zone 2B 9009' 8729' 22TS 9056' 8769' 21 TS-Zone 2A 9130' 8827' Zone 1B 9225' 8892' TDF-Zone 1A 9281' 8924' Base of Sadlerochit-Kavik 9359' 8957' TDF-Zone 1A(Invert) 9854' . 8914' Formation at total depth: 31. List of Attachments: Summary of Pre-Rig Reports,Summary of Daily Drilling Reports,Well Schematic Diagram Information to be attached includes,but is not limited to:summary of daily operations,wellbore schematic,directional or inclination survey,core analysis,paleontological report,production or well test results,per 20 AAC 25.070. 32.I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: Browning,Zachary H Email: Zachary.Browning©bp.com Printed Name: Joe Lastud Title: Drilling Technologist Signature: ' Phone: +1 907 564 4091 Date:(y/$ rj INSTRUCTIONS General:This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska.Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. All laboratory analytical reports regarding samples or tests from a well must be submitted to the AOGCC,no matter when the analyses are conducted. Item la. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated.Each segregated pool is a completion. Item 1 b.Well Class Service wells:Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disp,Water Supply for Injection,Observation or Other. Item 4b.TPI(Top of Producing Interval). Item 9. The Kelly Bushing and Ground Level elevations in feet above mean sea level.Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 15.The API number reported to AOGCC must be 14 digits(ex:50-029-20123-00-00). Item 20.Report true vertical thickness of permafrost in Box 20.Provide MD and ND for the top and base of permafrost in Box 29. Item 22.Review the reporting requirements of 20 AAC 25.071 and,pursuant to AS 31.05.030,submit all electronic data and printed logs within 90 days of completion,suspension,or abandonment,whichever occurs first. Item 23.Attached supplemental records should show the details of any multiple stage cementing and the location of the cementing tool. Item 24.If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26.(Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27.Method of Operation:Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-in,or Other(explain). Item 28.Provide a listing of intervals cored and the corresponding formations,and a brief description in this box.Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30.Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box.Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Item 31.Pursuant to 20 AAC 25.070,attach to this form:well schematic diagram,summary of daily well operations,directional or inclination survey,and other tests as required including,but not limited to:core analysis,paleontological report,production or well test results. Form 10-407 Revised 11/2015 Submit ORIGINAL Only • K-12B, Well History (Post-Rig Sidetrack) ACTIVITYDATE ' RY...... . . T/I/0=2400/260/15 Temp=S/I L&K pre E-line (CTD) Pumped 5 bbls meth followed by 290 bbls of 140* 15 KCLdown TBG, capped w/2 bbls meth and 38 bbls diesel for freeze protect. DSO notified of well status. FWHP's=0/1450/700 E-Line in control of well upon LRS 10/31/2015 departure. ***WELL SHUT IN ON ARRIVAL***(SLB E-LINE MILL XN NIPPLE SET WHIPSTOCK) INITIAL T/I/O = 50/600/700 RIH WITH WELLTEC 3.80" MILL. MILL OUT XN NIPPLE AT 8496'TO 3.80". LAY DOWN EQUIPMENT FOR THE NIGHT. COME BACK TOMORROW TO SET WHIPSTOCK. 10/31/2015 ***JOB CONTINUED ON 1-NOVEMBER-2015*** ***JOB CONTINUED FROM 31 OCTOBER 2015*** RIH WITH WHIPSTOCK, CCL STOP DEPTH =8800'. CCL TO TOP OF WHIPSTOCK= 14'. TOP OF WHIPSTOCK SET AT 8814'. WHIPSTOCK SET WITH ORIENTATION OF 149 DEG ROHS. OAL- 16.98' MAX OD 3.70" CORRELATED TO SLB MEMORY CNL DATED 23-NOVEMBER-2010 FINAL T/I/O =0/550/700 11/1/2015 ***JOB COMPLETE, WELL SHUT IN ON DEPARTURE*** T/I/O= 2077/321/-15 Temp=Sl Assist E-Line Load & Kill (Pre CTD) MIT-T to 3000 psi ***PASSED*** Pumped 5 bbl neat methanol spear followed by 290 bbls of 120* 1% KCL to load & kill the tubing. Pumped a 3 bbl neat methanol spacer followed by 38 bbls of diesel to freeze protect the tubing. pumped 14.5 bbls of diesel down tubing to reach test pressure. 1st 15 min tubing lost 35 psi. 2nd 15 min tubing lost 11 psi for a total loss of 46 psi in 30 min. Bled back— 3 bbls.Tags hung, SV WV SSV=closed MV IA OA=open. DSO notified. 11/1/2015 FWHPS=500/560/50 T/I/0=450/250/0 Installed Nordic TS#06 Installed rupture disk in SSV. FWP's 450/250/0 11/3/2015 see log for details. T/I/0=460/250/Vac. Temp=SI. Bleed WHPs to 0 psi (Pre Rig). Well has flowline and well house removed. T, IA, OA FL's @ surface. Bled TP from 460 psi to 10 psi in 30 min (fluid, 1 bbl). Bled IAP from 250 psi to 0 psi in 10 min (fluid, 1.3 bbl). Monitor 30 min, TP & IAP unchanged. Final WHPs=10/0/Vac. 11/4/2015 SV, WV, SSV=C. MV=O. IAP&OAP=OTG. NOVP. 0120. • • • North America-ALASKA-BP Page 1 - Operation Summary Report Common Well Name:K-12 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/7/2015 End Date:11/23/2015 X3-017H6-C:(3,505,479.00) Project:Prudhoe Bay Site:PB K Pad Rig Name/No.:NORDIC 1 Spud Date/Time:10/21/1987 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA WWI:500292175900 Active datum:K-12B @57.46usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 11/7/2015 19:00 - 21:00 2.00 MOB P PRE RIG RELEASED FROM 4-18 21:00 - 22:00 1.00 MOB P PRE MOVE OFF 4-18 THE FOLLWOING ITEMS WERE REVIEWED AND/OR TESTED BEFORE STARTING TO MOVE OFF THE WELL -CHOCKS ARE PLACED TO PREVENT THE RIG FROM ROLLING BACKWARDS -ESD IN CELLAR HAS BEEN TESTED -RADIO COMMUNICATIONS WAS CHECKED/ TESTED -THE AGREED COMMAND TO"STOP"THE RIG WAS REVIEWED AND UNDERSTOOD IN THE PJSM 22:00 - 00:00 2.00 MOB P PRE MOVE RIG TO K-PAD 11/8/2015 00:00 - 03:00 3.00 MOB P PRE CONTINUE RIG MOVE MCC TO OXBOW ROAD 03:00 - 06:00 3.00 MOB P PRE CONTINUE RIG MOVE OXBOW ROAD TO K-PAD ACCESS ROAD 06:00 - 08:00 2.00 MOB P PRE CONTINUE RIG MOVE K-PAD ACCESS ROAD TO K-PAD ENTRANCE 08:00 - 09:00 1.00 MOB P PRE RIG ON K-PAD ACCESS ROAD 09:00 - 09:15 0.25 MOB P PRE SPOT RIG AT CORNER OF PAD AWAY FROM THE WELLS TO REPAIR A WELD ON A HAND RAIL BEFORE SPOTTING RIG OVER WELL SET T-MATS WHILE MAKING REPAIR WHP'S-TREE/IA/OA 0/0/0 PSI CLOSE ALL TREE&CASING VALVES 09:15 - 09:45 0.50 MOB P PRE LINE UP RIG TO WELL 09:45 - 10:00 0.25 MOB P PRE HOLD PJSM TO PJSM RIG OVER WELL ENSURE BLOCK IS IN PLACE TO KEEP RIG FROM BACKING TO FAR ENSURE ALL RADIOS ARE WORKING AND HAVE GOOD BATTERIES 1 STOP COMMAND MEANS TO STOP THE RIG, STOP STOP MEANS TO ESD THE MOVE SYSTEM 10:00 - 10:30 0.50 MOB P PRE OPEN DOORS AND SPOT RIG OVER WELL 10:30 - 11:30 1.00 BOPSUR P PRE RIG SPOTTED CLOSE DOORS ENCLOSE CELLAR ***PUMP OPEN SSV WITH CTS PANEL*** CYCLE ALL TREE VALVES,INSTALL FUSIBLE CAP THEN CLOSE ALL TREE VALVES LTT MASTER&SWAB TO ND TREE CAP ACCEPT RIG 1030 HRS 8 NOV 2015 11:30 - 12:30 1.00 BOPSUR P PRE GOOD LTT,ND TREE CAP MONITORING WHP THROUGH THE WING 12:30 - 13:40 1.17 BOPSUR P PRE LOWER STACK AND NU BOPE 13:40 - 15:15 1.58 BOPSUR P PRE RU LUBRICATOR&HOT TUB AND SECURE STACK 15:15 - 16:30 1.25 BOPSUR P PRE GREASE CHOKE LINE VALVES AND CHOKE VALVES 16:30 - 17:00 0.50 BOPSUR P PRE FLUID PACK STACK AND SHELL TEST Printed 11/23/2015 2:51:49PM • North America-ALASKA-BP Page 2a0d6 Operation Summary Report Common Well Name:K-12 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/7/2015 End Date:11/23/2015 X3-017H6-C:(3,505,479.00) Project:Prudhoe Bay Site:PB K Pad Rig Name/No.:NORDIC 1 Spud Date/Time:10/21/1987 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292175900 Active datum:K-12B @57.46usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:00 - 17:40 0.67 BOPSUR P PRE GOOD SHELL TEST 17:40 - 00:00 6.33 BOPSUR P PRE TEST BOPS AS PER BP,STATE AND NORDIC REQUIREMENTS STATE GIVEN NOTIFICATION OF BOP TEST 7 NOV 2015 AT 0951 HRS STATE INSPECTOR JEFF JONES WITNESSED THE BOP TEST PRESSURE TEST ALL BOP EQUIPMENT AS PER AOGCC REGS PTD#215-133 AND CRT-AK-10-45 -TEST BOPE TO 250/3500 PSI FOR 5/5 CHARTED MIN -TEST CHOKE VALVES,CHOKE AND KILL HCR VALVES,INSIDE MANUAL VALVES ON CHOKE AND KILL LINES,BOP RAMS AND ANNULAR PREVENTER(2500 PSI) -VARIABLE PIPE RAMS TESTED WITH 2 3/8"- 3 1/2"TEST JOINT -2-3/8"PIPE RAMS TESTED WITH 2 3/8"TEST JOINT -BLIND RAMS TESTED ON OPEN HOLE -ANNULAR TESTED WITH BOTH 2 3/8"AND 3 1/2"TEST JOINT -TEST BOTH FULL OPENING SAFETY VALVES -FUNCTION BOP FROM BOTH REMOTE PANELS -TEST GAS ALARMS -ALL TESTS WITNESSED BY DRILLER,STATE INSPECTOR,OR BP WSL ***HOLD PRE-SPUD MEETING DURING PRE-TOUR WITH EVENING SHIFT CREW*** 11/9/2015 13:45 - 14:00 0.25 STWHIP P WEXIT WELL SWAPPED TO MUD,CLOSE THE EDC GETTING GAS&DIESEL BACK FROM THE LUBRICATOR WHILE BLEEDING OFF,CIRC UNTIL RETURNS CLEAN UP 00:00 - 02:30 2.50 BOPSUR P PRE BOP TEST -FINISH TESTING BOPS -PRESSURE TEST COIL INNER REEL VALVE AND PACK-OFF 250 PSI/3500 PSI-GOOD TEST 02:30 - 03:00 0.50 BOPSUR P PRE R/D BOP TEST EQUIPMENT 03:00 - 03:30 0.50 BOPSUR P PRE VALVE SHOP TORQUE TREE BOLTS AND GREASE THE VALVES 03:30 - 06:00 2.50 BOPSUR P PRE COIL MANAGEMENT -CUT 200'OF COIL -PUMP SLACK BACK -CUT 300'OF COIL -DID NOT FIND E-LINE -INSTALL NIGHT CAP -PUMP SLACK FORWARD -INSTALL COIL CONNECTOR -PULL TEST 40K - GOOD TEST -PRESSURE TEST -GOOD PT 06:00 - 06:25 0.42 BOPSUR P PRE CREW CHANGE Printed 11/23/2015 2:51:49PM • North America-ALASKA-BP Page 3 616 Operation Summary Report Common Well Name:K-12 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/7/2015 End Date:11/23/2015 X3-017H6-C:(3,505,479.00) Project:Prudhoe Bay Site:PB K Pad Rig Name/No.:NORDIC 1 Spud Date/me:10/21/1987 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292175900 Active datum:K-12B @57.46usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 06:25 - 06:45 0.33 BOPSUR P PRE PU THE INJECTOR AN MU TO THE LUBRICATOR TO CIRCULATE 1 VOLUME FORWARD TO DISTRIBUTE SLACK 06:45 - 07:00 0.25 BOPSUR P PRE ONLINE WITH THE PUMP 07:00 - 07:30 0.50 BOPSUR P PRE SHUT DOWN AND CHECK FOR WIRE HOLD RIG EVAC DRILL WITH DAY CREW WHILE PUMPING SLACK FORWARD 07:30 - 08:00 0.50 BOPSUR P PRE NO WIRE,PUMP AGAIN 08:00 - 08:40 0.67 BOPSUR P PRE WE HAVE WIRE,HEAD UP 08:40 - 08:55 0.25 BOPSUR P PRE TEST BHI CHECK VALVES 08:55 - 09:15 0.33 BOPSUR P PRE GOOD TEST,INSTALL NIGHT CAP AND PT TO OPEN UP TO THE WELL 09:15 - 09:25 0.17 BOPSUR P PRE GOOD TEST,OPEN WELL TO A CLOSED CHOKE TO CHECK FOR PRESSURE NO PRESSURE,CRACK OPEN THE CHOKE AND FILL THE HOLE HOLE TOOK 1.4 BBLS 09:25 - 09:40 0.25 BOPSUR P PRE FLOW CHECK WELL 09:40 - 10:10 0.50 STWHIP P WEXIT GOOD NO FLOW,REMOVE NIGHT CAP MU MILLING BHA GAUGE MILLS -WINDOW MILL=3.81 GO 3.80 NO GO -STRING MILL=3.80 GO 3.79 NO GO 10:10 - 12:15 2.08 STWHIP P WEXIT PU THE INJECTOR AND MU TO THE BHA, SURFACE TEST THE TOOLS,OPEN THE EDC &RIH WHILE TESTING THE QTS 12:15 - 12:40 0.42 STWHIP P WEXIT LOG TIE IN 12:40 - 13:45 1.08 STWHIP P WEXIT CORRECT DEPTH+12' CONTINUE DISPLACING WELL AT MAX RATE TO CONDITION THE WELL GETTING GAS BACK,VERIFY WIND DIRECTION AND NOTIFY PAD OPERATOR TO RESTRICT ACCESS TO THE PAD BOTTOMS UP STARTING TO CLEAN UP BLEED IA&OA PRESSURES FROM 1340 PSI/ 713 PSI 14:00 - 14:10 0.17 STWHIP P WEXIT RETURNS ARE CLEAN,TAKE FLUID BACK TO THE PITS,SHUT DOWN THE PUMP AND RIH TO TAG WS PINCH POINT RIH WT=22K PU WT =37K TAG AT 8817.4'WITH 5.10K DOWN PU AND START THE PUMP 14:10 - 17:50 3.67 STWHIP P WEXIT TAG PINCH POINT,FLAG PIPE AND START MILLING AS PER PLAN y�'2J MILL 8817.20'to 8822.6' } 4iFREE SPIN=2950 PSI AT 2.70 BPM RATE IN=2.68 BPM RATE OUT=2.70 BPM MW IN=9.49 PPG MW OUT=9.57 PPG ECD =10.70 PPG ROP=1 FPH WOB=1.18 K CIRC PSI= 3036 PSI IAP=557 PSI OAP=389 PSI PVT=141 BBLS ADDING FLUID TO PITS Printed 11/23/2015 2:51:49PM • • North America-ALASKA-BP Page 46 Operation Summary Report Common Well Name:K-12 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/7/2015 End Date:11/23/2015 X3-017H6-C:(3,505,479.00) Project:Prudhoe Bay Site:PB K Pad Rig Name/No.:NORDIC 1 Spud Date/me:10/21/1987 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292175900 Active datum:K-12B @57.46usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:50 - 23:45 5.92 STWHIP P WEXIT CONTINUE MILLING THE WINDOW MILL 8822.6'TO 8826.1' FREE SPIN=2725 PSI AT 2.70 BPM RATE IN=2.66 BPM RATE OUT=2.66 BPM MW IN=9.50 PPG MW OUT=9.50 PPG ECD =10.49 PPG ROP=1.47 FPH WOB=2.18 K CIRC PSI= 2827 PSI IAP=962 PSI OAP=592 PSI PVT=271 BBLS MAINTAIN FULL RETURNS 23:45 - 00:00 0.25 STWHIP P WEXIT MILL RATHOLE MILL 3.80"RATHOLE 8826.1'TO 8826.3' FREE SPIN=2725 PSI AT 2.70 BPM RATE IN=2.67 BPM RATE OUT=2.66 BPM MW IN=9.50 PPG MW OUT=9.51 PPG ECD =10.48 PPG ROP=0.80 FPH WOB=2.11 K CIRC PSI= 2834 PSI IAP=901 PSI OAP=634 PSI PVT=270 BBLS MAINTAIN FULL RETURNS 11/10/2015 00:00 - 02:00 2.00 STWHIP P WEXIT MILL RATHOLE MILL 3.80"RATHOLE 8826.3'TO 8838' FREE SPIN=2725 PSI AT 2.70 BPM RATE IN=2.67 BPM RATE OUT=2.66 BPM MW IN=9.50 PPG MW OUT=9.51 PPG ECD =10.48 PPG ROP=5.85 FPH WOB=2.11 K CIRC PSI= 2834 PSI IAP=956 PSI OAP=669 PSI PVT=270 BBLS MAINTAIN FULL RETURNS 02:00 - 04:30 2.50 STWHIP P WEXIT DRESS WINDOW PER PLAN -REAM WINDOW 3X'S -DRY DRIFT WINDOW(GOOD) 04:30 - 06:00 1.50 STWHIP P WEXIT POOH WITH MILLING ASSEMBLY -MM IN/OUT:3.58/3.02 CIRC PSI:3248 -MW IN/OUT:9.53 PPG/9.52 PPG -FLOW CHECK - NO FLOW 06:00 - 06:15 0.25 STWHIP P WEXIT CREW CHANGE 06:15 - 06:30 0.25 STWFIIP P WEXIT FLOW CHECK WELL WHILE HOLDING A PJSM WITH THE CREW COMING ON TO PULL THE BHA 06:30 - 07:10 0.67 STWHIP P WEXIT GOOD NO FLOW,TAG UP,REMOVE THE INJECTOR AND LD THE WINDOW MILLING BHA 07:10 - 07:20 0.17 STWHIP P WEXIT BHAOOH MILLS IN GAUGE WINDOW MILL =3.79 GO 3.78 NO GO STRING MILL=3.79 GO 3.78 NO GO GOOD WEAR ON THE FACE OF THE WINDOW MILL LOAD OUT BTT MOTOR 07:20 - 07:30 0.17 DRILL P PROD1 MU THE BUILD BHA 07:30 - 09:30 2.00 DRILL P PROD1 PU THE INJECTOR,MU TO THE BHAAND SURFACE TEST THE TOOLS OPEN EDC AND RIH 09:30 - 09:45 0.25 DRILL P PROD1 LOG TIE IN 09:45 - 09:55 0.17 DRILL P PROD1 CORRECT DEPTH+11',CLOSE THE EDC AND RIH TO TD Printed 11/23/2015 2:51:49PM TREE= CNV WELLItA D= MCEVOY SAFETY NOTES: WELL ANGLE>70°@ 9355'. ' ACTUATOR= BAKER K-1 2B ***4-1/2"CHROME TBG***ORIG WELL 8,K-12A OKB ELEV= 52,8' NOT SHOWN BELOW WHIPSTOCK*** BF ELEV= 24.96' I I KOP= 8147 Max Angle= 101"@9585' ' 111 2207' 4-1/2"HES X NP,D=3.813" DatumIVD= 9173' Datum-R/15= 8800'SS GAS LIFT MANDRELS 13-318'CSG,72#,L-80 H 2691' —Al ST MD IVD DEV TYPE VLV LATCH PORT DATE BTRS, D=12.347' 4 3065 3064 0 Mufti CMI' RK 0 02/09/14 3 5552 5541 17 MNG [W RK 0 02/09/14 2 7208 7044 24 MNG DAY RK 0 05/19/10 1 8282 8044 19 KBG2 DMY BK 0 05/19/10 Minimum ID =3.80" @ 8496' MILLED 4-1/2" HES XN NIPPLE 7952' —9-5/8"X7"BKR HRDZXP LTPw/TEBACK SLV& T. ►z HMC LNR HGR,D=6.276" 41 t'1 9-5/8"BOT WHPSTOCK(05/02/10) — 8142' ,$$ S4 MILLOUT WINDOW(K-12B)8125'-8142' .1` f; '4\ 9-5/8"CSG,47#,L-80 BUTT,D=8.681" H 8653' , 8359' —14-1/2"HES X NP,D=3.813" 111 8394' H7-X 4-1/2"HES TNT PKR,ID=3.856" PERFORATION SUIMMARY 1'i REF LOG: MWD GAMMA LOG on 05/17/10 f�i ' 8425' H4-1/2"HES X NP,D=3.813" ANGLE AT TOP PERF: 64°@ 9314' We,Refer to Roduction DB for historical perf data SIZE SPF INTERVAL OpnlSgz SHOT SGIZ 8496' H4-1/2"HES XN NP MI.L®TO 3.80"(10/31/15) 2-7/8" 6 9314-9333 C 03/07/11 2-7/8" 6 9333-9358 C 03/07/11 8500' —7'X 5"HRD ZXP LIP w TEBACK 2-7/8" 6 9900- 10940 C 05/17/10 SLV,D=4.440' 2-7/8" 6 11010-11190 C 05/17/10 8508' H4-1/2"WLEG,ID=3.958" 44 ►iL 8517' —7"X 5"HRD BKR FLEXLOCK— o. 4-1/2"TBG, 12.6#,13CR-85 VAM TOP,.0152 bpf,D=3.958" — 8508' to. LNR HGR,ID=4,400" 8526' —5"X 4-1/2"XO,D=3.930" it 7"LNR,29#,L-80 BTGM,.0371 bpf,113 H=6.184" 8676'r4-112"BKR 45K6 PKRWHPSTOCK w/2 RA TAGS(11101/15) 8814'PMDPD 11221' l tft 14-1/2'LNR,12.6#,L-80 ET,.0152 bpf,D=3.958" H 11303' DATE REV BY COPMENTS DATE REV BY COPY? NTS PRUDHOE BAY UNIT 12/26/87 ORIGINAL COMPLETION 11/02/15 DLW/JM)MLL XN NP,SET WS(10/31-11/01/15 WELL: K-12B 01/14/01 CTU SIDETRACK PERMT No: 2091430 05/19/10 D-14 SIDETRACK(K-12B) AR No: 50-029-21759-02-00 04/02/11 AF/PJC MODIFIED CHOKE CORRECTION SEC 4,T11 N,R14E 1694'ANL&1109'F VL 02/12/14 JLS/JM7 GLV CIO(02109/14) 03/03/14 DEM PJC PULL KB PKR CHOKE(3/2114) BP Exploration(Alaska) • • Alaska V OF T � Alaska Oil and Gas 9w\��\I�7,iSA THE STATE •,;-s �� ofA LASKA Conservation Coinrnissi®n 5�t - 333 West Seventh Avenue de GOVERNOR BILL WALKER Anchorage, Alaska 99501-3572 *h' Main: 907.279.1433 °P ALA°'�S 1°.* Fax: 907.276.7542 }{� www.aogcc.alaska.gov ��5 c FLU John McMullen �� Engineering Team Lead (_2(2g— I �- � BP Exploration(Alaska), Inc. 6 LJ P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU K-12B Sundry Number: 315-618 Dear Mr. McMullen: Enclosed is the approved application for sundry approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the AOGCC grants for good cause shown, a person affected by it may file with the AOGCC an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. Sincerely, Cathy P. Foerster Chair DATED this / day of October, 2015 Encl. RBDMS OCT 14 2015 STATE OF ALASKA ',ALASKA OIL AND GAS CONSERVATION COMM N APPLICATION FOR SUNDRY APPROV LS 20 AAC 25.280 1. Type of Request: Abandon 0 Plug Perforations ❑ Fracture Stimulate 0 Pull Tubing ❑ Operations shutdown 0 Suspend 0 Perforate 0 Other Stimulate 0 Alter Casing 0 Change Approved Program 0 Plug for Redrill Q. Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other 0 2. Operator Name: BP Exploration(Alaska),Inc 4. Current Well Class: 5. Permit to Drill Number: 209-143 • 3. Address: P.O.Box 196612 Anchorage,AK Exploratory 0 Development Q. 99519-6612Stratigraphic ❑ Service ❑ 6. API Number: 50-029-21759-02-00 - 7. If perforating: 8. Well Name and Number: What Regulation or Conservation Order governs well spacing in this pool? Will planned perforations require a spacing exception? Yes 0 No Q PBU K-12B 9. Property Designation(Lease Number): 10. Field/Pools: OC ADL 028303• PRUDHOE BAY,PRESENT WELL CONDITION SUMMARY PRUDHOE OIL 0 Z��IJ to , 13(I S 11. Total Depth MD(ft): Total Depth TVD(ft): Effective Depth MD(ft): Effective Depth TVD(ft): Plugs(measured): iGC 11305 • 8805 • 11221 • 8812 • None None Casing Length Size MD TVD Burst collapse Structural Conductor 80 20"91.1#H-40 36-116 35-115 1530 520 Surface 2661 13-3/8"72#L-80/5-95 35-2696 35-2696 4930 2670 Intermediate 8092 9-5/8"47#L-80 33-8125 33-7895 6870 4760 Liner 724 7"29#/26#80 7952-8676 7732-8418 8160/7240 7020/5410 Liner 2803 4-1/2"12.6#L-80 8500-11303 8251 -8805 8430 7500 Perforation Depth MD(ft): Perforation Depth TVD(ft): Tubing Size: Tubing Grade: Tubing MD(ft): 9314-11190 8940-8815 4-1/2"12.6# 13Cr85 31-8508 • Packers and SSSV Type: 4-1/2"HES TNT Packer Packers and SSSV MD(ft)and TVD(ft): 8394/8150 No SSSV Installed No SSSV Installed 12.Attachments: Description Summary of Proposal Q • 13.Well Class after proposed work: BOP Sketch Q Detailed Operations Program 0 Exploratory 0 Stratigraphic 0 Development Q • Service 0 14.Estimated Date for Commencing Operations: October 15,2015 • 15. Well Status after proposed work: Oil 0 Gas 0 WDSPL 0 Suspended Q 16.Verbal Approval: Date: WINJ 0 GINJ 0 WAG 0 Abandoned o Commission Representative: Op Shutdown ❑ GSTOR 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Browning,Zachary H Email Zachary.Browning@bp.com Printed Name John-/cM -n e- Title Engineering Team Lead Signalu / r Phone +1 907 564 4711 Date (0( -_,/'/ ,jL7 lL--. r,/ COMMISSION USE ONLY Conditions of approval:Notify Commission so that a representative may witness Sundry Number: Plug Integrity 0 BOP Test V Mechanical Integrity Test 0 Location Clearance 0 Other: BCP 7 5 t ;{-n a T., s/ ,7 ; j �>,i%�G'`9.7�-/of � ,n � 3 r . 5 Z,�t'f C �; 5 r� � A-i vivlrrr re-I/Gv:r-t'✓ {r -f fa .2 5-0 0 rSt /trtrTJGcf-r" /�/i/v plaCr'yi--) re�,/----6-11-_,Ivr-6 ci pee-- o,204-4c 2 ,J/ Z (I Spacing Exception Required? Yes 0 No I2/ Subsequent Form Required: 12 - 4 t 7 Approved by: COMMISSIONER APPROVED COMMISSION Date:/Date: 643„ VTI- 10/9/15 ORIGINAL RBOM nrT149fl15 , /64-M Submit Form and Form 10-403 Revised 5/2015 Approved application is valid for 12 months from the date of approval. Attachments in Duplicate • • To: Alaska Oil & Gas Conservation Commission bp From: Zach Browning CTD Engineer Date: September 29, 2015 Re: K-12B Sundry Approval Request Sundry approval is requested to plug the K-12B perforations as part of the preparation, drilling and completing the proposed K-12C coiled tubing sidetrack. History of K-12B: Well was sidetracked with Rotary rig Doyon 14 in 2010 leaving a 4-1/2" monobore completion. Unfortunately the well was never competitive and spent little time online. It has been offline since 2012 with no wellwork options. The well has passed integrity and is fit for a sidetrack. Proposed plan for K-12C: Drill a through tubing sidetrack with the Nordic 1 Coiled Tubing Drilling rig on or around December 1st, 2015. The K-12C sidetrack will be a single string exit from the existing 4- 1/2" liner. A packer whipstock will be set pre-rig allowing isolation from the parent perforations. The planned well kicks-off is in Zone 4, builds through the conglomerates and will land and target reserves in Zones 1A/1 B. The proposed sidetrack is a -3000' horizontal Ivishak Zone 1 producer to be completed with a 3-1/2" x 3-1/4" x 2-7/8" L-80 solid liner, cemented in place and selectively perforated. This Sundry covers plugging the existing K-12B perforations via the packer whipstock set pre-rig and liner cement lob or liner top packer, if the liner lap pressure test fails (alternate plug placement per 20 AAC 25.112(i)). The following describes the work planned and is submitted as an attachment to Form 10-403. A schematic diagram of the current well and proposed sidetrack is attached for reference. Cbn Gvr. 14r k p// %s 44* /2fs /744,7 /� 4.5 D� frafo�'o1 X14 T�i� 3-)L Ale/e-f S:6C .'v- v��s e0��,�6 34e A00 McP4r ivS i,h sc, '/a tvo/G MO/ 0,^, L7 2007 /OP/ w 'rdi g Go% ti loo .*,c� r 7 c�,e!/ �4f 44°/ , 41 6C)' �a /0'' oil/ f (/ ,yo9 /P4/<,( .' v h de r 300 k✓l?,1 -64941 rye o s�e ���,,� 1°c (PGfr // 54GaO/ ,y tovto/ /e cove, 14- (91I�, ��"'41, o f rile fool' ,� '%1,r' • • Pre-Rig Work(scheduled to begin October 15th, 2015) 1. S Drift for Whipstock. 2. F A/EL: Load & Kill Well. Injectivity test 3. E Mill XN nipple 4. E Set Packer Whipstock 5. F MIT-T. 6. V Pre-CTD tree work. Leave TWC if MIT-T failed. Rig Work(scheduled to begin December 1st, 2015) 1. MIRU and test BOPE 250 psi low and 3,500 psi high (MASP 2,502 psi). 2. Mill 3.80"window and 10'of rathole. 3. Drill build: 4.25" OH, —420' (24 deg DLS planned). 4. Drill lateral: 4.25" OH, —2500' (16 deg DLS planned). 5. Run 3-1/2"x 3-1/4" x 2-7/8" L-80 liner leaving TOL at—8786' MD. 6. Pump primary cement job: 34 bbls, 15.8 ppg Class G, TOC at—8786' MD.* 7. Liner cleanout and GR/CCL/RPM log. 8. Perform liner lap test. 9. Perforate —1000' based on log interpretation. 10. Freeze protect well to a min 2,200'TVDss. 11. Close in tree, RDMO. * Approved alternate plug placement per 20 AAC 25.112(i) Post-Rig Work: 1. Re-install wellhouse, and flowline. 2. Install GLVs. 3. Set liner top packer with slickline if liner lap test fails.* Zach Browning CC: Well File CTD Engineer Joe Lastufka 564-5220 TREE= . CNV • ACTUATOR MZEVOYBAKER C K-1 2 B Alt NOTES: WELL *ANGLE>70'L 9355'. 4-1/2"CHROME TBG***ORIG WELL 8 K-12A OKB.ELEV-- 52.8' NOT SHOWN BELOW WHIPSTOCK*** BF.E.EV= 24.96' I1 KOP= 8142' i il lMx Angle= 101"Q 9585' 2207' H 4-1/2"FES X NP,D=3.813' Datum MD= 9173' Dattjn TVD= 8800'SS 13-3/8"CSG,72#,L-80 --1 2688' 1--4 GAS LFT MANDRELS BTFZS, D=12.347" , ST MD ND DEV TYPE VLV LATCH PORT DATE 1.d 4 3065 3064 0 MMG DMY RK 0 02/09/14 3 5552 5541 17 MNG DMY RK 0 02109/14 2 7208 7044 24 MMG DM' FE 0 05/19/10 1 8282 8044 19 KBG2 DMY BK 0 05/19/10 Minimum ID =3.725" @ 8496' 4-1/2" HES XN NIPPLE 7952' H9-5/8"X 7"BKR FRDZXP LTPw/TEBACKSLV8 Z� ice* HMC Lt'R HGF,D=6.276" 10 IN 1'1 '111 •1/ �11 9-5/8"BOT WHPSTOCK(05/02/10) H 8142' 144 41 �1' ) ROLLOUT WH)OW(K-128)8125'-8147 `1� � 1 1 1V 9-5/8'CSG,47#,L-80,I)=8.681" H 8650' `--AI 8359' H4-1/7-1-ES X NP,D=3.813" 8394' Hr X 4-1/2"FES TNT PKR,D=3.856" PERFORATION SUVMARYt o- REF LOG: MNVD GAMMA LOG on 05/17/10 �i4 11 8425' H4-1/2"FES X NP,D=3.813" ANGLE AT TOP PERF: 64"@ 9314' Note:Refer to Roduction DB for historical pert data 11 8496' H4-1/2-FES XN NP,D=3.725" SIZE SPF NTERVAL Opn/Sqz SHOT SQZ 2-7/8" 6 9314-9333 0 03/07/11 2-7/8" 6 9333-9358 0 03/07/11 8500' —7-X 5'Ff)ZXP LTP w TEBACK 2-7/8" 6 9900-10940 0 05/17/10 SLV,D=4.440" 2-7/8" 6 11010-11190 0 05/17/10 8508' H4-12"WLE;,D=3.958" t'' 8517' —7"X 5"HF )BKR FLFXCLOCK v„,..� 4-1/2"TBG,12.6#,13CR-85 VAM TOP,.0152 bpf,D=3.958" I— 8508' LN2 HGR,D=4.400' 8526' H 5"X 4-1/2"XO,D=3.930" 7'L142,29#,L-80 BTC-M,.0371 bpf,I)=6.184" H 8676' ii X 1111 PBTD H 11221' .'.1�� ;:,;A �4-12"LIR,12.6#,L-80 BT,.0152 bpf,D=3.958" H 11303' DATE REV BY COM IVE TTS DATE REV BY COMu6YTS PRLDHOE BAY UGIT 12/26/87 ORIGINAL COMPLETION 07/09/10 MJYJMD 7"LNR CORRECTION WELL: K-12B 01/14/01 CTU SIDETRACK 03/09/11 R?&VPJC KB PKR w/CHOKE/ADPITF(3/7/11) PBRMT No:"1091430 05/19/10 D-14 SIDETRACK(K-1213) 04/02/11 JNF/PJC MDDFED CHOKE CORRECTION AR No: 50-029-21759-02-00 05/22/10 PJC DRLG HO CORRECTIONS 02/12/14 JLS/JIVD GLV CIO(02/09/14) SEC 4,111N,R14E,1694'FNL&1109'FWL 05/31/10 RCT/PJC GLV C/O(05/23/10) 03/03/14 DEM PJC RLL KB PKR CHOKE(3/2/14) 06/28/10 MWJMD DRLG DRAFT CORRECTIONS BP Exploration(Alaska) TREE_ . CNV • WELLI-FAD= MCEVOY PROPOSED K SA NOTES: WELL ANGLE>70°@ ACTUATOR= BAKER C —1 z( ***4-1/2"CHROME TBG***ORIG WELL&K-12A OKB.REV= _52-8' NOT SHOWN BELOW WHIPSTOCK*** BF.ELEV_ -- 24.96' I I KOP_= _ 8142' Max Angle= @__ ' r 2207' —14-1/2"HES X NP,D=3.813" li Datum MD= Datum TVD= 8800'SS GAS LFT MANDRELS 13-3/8"CSG,72#,L-80 —1 2691' ST M3 IV)) DEV TYPE VLV LATCH PORT DATE BTRS, D=12.347' li .. 4 3065 3064 0 MMG DMY RK 0 02/09/14 3 5552 5541 17 MAG DMY RK 0 02/09/14 Minimum ID = "" ' 2 7208 7044 24 MAG DMY RK 0 05/19/10 1 8282 8044 19 KBG2 DMY BK 0 05/19/10 f 7952' —9-5/8"X 7"BKR HRD ZXP LIP w/TEBACK SLV& HMC LNR HGR,D=6.276" 9-5/8"BOT VVI- STOCK(05/02/10) H 8142' H MLLOUT WINDOW(K-12B)8125'-8142' ID 9-5/8"CSG,47#,L-80 BUTT, =8.681" —8142' ' ' 8359' —4-1/2"HES X NP,D=3.813" SI 8394' H7"X 4-1/2"HES TNT PKR,ID=3.856" PERFORATION SUMMARY �I REF LOCI: on / / ANGLE AT TOP PERF © _ __ ' , 8425' —14-1/2"HES X NP,D=3.813" Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz SHOT SQZ il ' 8496' —4-1/2"HES XN NP, nrled ID=3.80" /'� 8500' 17"X 5"HRD ZXP LTP w TEBACK SLV,D=4.440" 4-1/2"TBG,12.6#,13CR-85 VAM TOP, —I 8508' 8508' �4-1/2"VVLEG,D=3.958" _0152 bpf,D=3.958" 851 T —{7"X 5"HRD BKR FLEXLOCK ‘NNNLNR HGR,ID=4.400" 7"LNR,29#,L-80 BTC-M,.0371 bpf,D=6.184" H 8676' H--41 , 8526' —5"X 4-1/2"XO,D=3.930" TOP OF LNR --I —8786' 1------* —8786" —13.70"BKR DEPLOYMENT SLV,D=3.00" 3-1/2"LNR, #,L-80 STL,.0087 bpf,D=2.992" — 1----- "'8796 --13-1/2-I IC...,X NP,D=2-813" 4-1/2"KB BKR PKR WHPSTOCK( / / ) —1 8816' H3-1/2"X 3-3/16"XO,D=2.786" 4-1/2"LNR,12.6#,L-80 BT,.0152 bpf,D=3.958" H —8816' MLLOUT WINDOW(K-12C)8816'-8626' 3-1/4"LNR,6.4#,L-80 TC11,.0079 bpf,D=2.85" — I-------' —10,000' —3-3116"X 2-7/8"XO,D=2.377" I j H3-1/4"SFIDRT PIF JOINT w/RA TAG PBTD — 2-7/8"LNR,6.4#,L-80 STL,.0076 bpf,ID=2.441' —1 11730' --1....__, DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/26/87 ORIGINAL COMPLETION WELL: K-12 01/14/01 CTU SIDETRACK PERMT No: 05/19/10 D-14 SIDETRACK(K-12B) AR No: 50-029-21759-0 XX/XX(XX CTD S t(K-12C) SEC 4,T11 N,R14E, 1694'FNL&1109'FWL 09/17/15 JMD BOLT PROPOSED BP Exploration(Alaska) •• • 111111 P. a p = "� f ai LL b m a v g �2 d LL f' So 9 i 2 2=e O . Y i m �•� f f — 1911 14 1 u u 8 e'a 0 1.. g . Mil :1111 Oil MI- ' 00 i. - It _ LL LL _0 , 1 m f 6-Ili il . - . - 474"rj o 'moi f Ha q g o a _ m V a m I O Al m 1 0 c 1 e' 1 m l3 1 1 a Q �M'111 I ii : I II ( ; X11 � 111 111 LL �ii i II \ a 0 '- id, 0 r U S La m Z ' u .-- ® III a 1.11 a I Q a 1 0 - C I ei C 1 g III III me ' ir I u °u III 111 Q - J 111 zi og �3 w • 11 , _ _ in II1 a 11. ;-, . 1 ,1 « �. J g 4 M 1.7_, to 111 r LLI 1.- • • Ce Y LLI 11 201 N C V11 0.1 cc ii Q F y AII , ..: Q 1 Em U V 1 e 1 cn �� U d ' 7 I rc cc I 3}ore ELI: iZ 1I 11I a Y w Ii = 9 1 ' ` 1,, NI N , [ 1'111,1 g ;!, A 1 d. n1 'i rc I- ,. 8 ry I m I. III rt �j I (�� 11 0 ~ O I 41+1 I1•i 1110 1 11 i • • Sundry Application Plug for Re-drill Wells Work Flow This process is used to identify wells that are suspended for a very short time prior to being re-drilled. Those wells that are not re-drilled immediately are identified every 6 months and assigned a current status of"Suspended." Step Task Responsible 1 The initial reviewer will check to ensure that the "Plug for Redrill" box in the Patricia or Steve upper left corner of Form 10-403 is checked. If the "Abandon" or "Suspend" boxes are also checked, cross out that erroneous entry and initial it on both copies of the Form 10-403 (AOGCC's and operator's copies). 2 If the "Abandon" box is checked in Box 15 (Well Status after proposed Patricia or Steve work) the initial reviewer will cross out that erroneous entry and initial it on both copies of the Form 10-403 (AOGCC's and operator's copies). Instead, then check the "Suspended" box and initial that change. Guy or Victoria The drilling engineers will serve as quality control for steps 1 and 2. (QC) 3 When the Stat Tech receives a Form 10-403 with a check in the "Plug for Jenni Redrill" box, she will enter the Typ_Work code "IPBRD" into the History tab for the well in RBDMS. This code automatically generates a comment in the well history that states"Intent: Plug for Redrill." 4 When the Stat Tech receives any Form 10-407, she will check the History tab Jenni in RBDMS for the "Intent: Plug for Redrill" code (IPBRD). If present and there is no evidence that a subsequent re-drill has been COMPLETED, the Stat Tech will assign a status of SUSPENDED to the well bore in RBDMS no matter what status is listed on the 10-407. The Stat Tech will also change the status on the 10-407 form to SUSPENDED, and date and initial this change. If the Stat Tech does not see the "Intent: Plug for Redrill" comment or code, she will enter the status listed on the Form 10-407 into RBDMS. 5 When the Form 10-407 for the redrill is received, the Stat Tech will change Jenni the original well's status from SUSPENDED to ABANDONED. 6 The first week of every January and July, the Stat Tech and one of the Jenni Geologists will check the "Well by Type Work Outstanding" user query in Patricia or Steve RBDMS to ensure that all of the Plug for Redrill wells have been handled properly. At this same time, they will also review the list of suspended wells for accuracy. i s Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. ~,~_ - , ~~ Well History File Identifier anizin done Two-sided III IIIIIIIIIII VIII ^ Rescan Needed III (IIII) II II IIIIII Org g c ~ ^ RE AN DIGITAL DATA OVERSIZED (Scannable) C/olor Items: ^ Diskettes, No. ^ Maps: °~reyscale Items: ^ Other, No/Type: ^ Other Items Scannable by a Large Scanner ^ Poor Quality Originals: OVERSIZED (Non-Scannable) ^ Other: ^ Logs of various kinds: NOTES: ^ Other:: BY: Maria Date: ~ / (J /s/ Pro "ect Proofin I g II I II II II I I III I I III BY: Maria Date: ~ ® /s/ ~ 0 = ~ + ~' =TOTAL PAGES Scanning Preparation x 3 ~ -- -~ (Count does not include cover sheet) BY: Maria Date: /s/ Production Scanning I II I II II I (II II I I II I (Count does nt from Scanned File: C 1 P St include cover heet) ou age age --~= ~ Pa a Count Matches Number in Scannin Preparation 9 g ES : NO BY: Maria Date: ~~ l ~ I ~ /s/ ~ I Stage 1 If NO in stage 1 page(s) discrepancies were found: YES NO , BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. II I II II II I II II I I III Rescanned II I 111111 VIII V III BY: Maria Date: /s/ Comments about this file: Qu ality Checked I II I I II II II I IIII II I 10/6/2005 Well History File Cover Page.doc A3ut. - P 1-6 zo'j/4 30 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [AKDCWeIIIntegrityCoordinator @bp.com] 6,/ � , Sent: Saturday, August 11, 2012 9:46 PM elf To: Schwartz, Guy L (DOA); Regg, James B (DOA); AK, D &C Well Services Operations Team Lead; AK, D &C Wireline Operations Team Lead; Cismoski, Doug A; Daniel, Ryan; AK, RES GPB West Wells Opt Engr; AK, OPS GC1 OSM; AK, OPS GC1 Field O &M TL; AK, OPS GC1 Facility OTL; AK, OPS GC1 Wellpad Lead; AK, OPS Prod Controllers; AK, OPS Well Pad EKG; AK, OPS Well Pad YP Cc: AK, D &C DHD Well Integrity Engineer; Arend, Jon (NORTHERN SOLUTIONS LLC); Ramsay, Gavin; Brown, Don L. Subject: NOT OPERABLE: Producers with Sustained Casing Pressure During TAR All, The following producers were found to have sustained casing pressure on the IA during shutdown for turnaround activity. The immediate action is to perform a TIFL on each of the wells to evaluate for IA repressurization. If the wells fail the TIFL, a follow up email will be sent to the AOGCC for each individual well. K -05D (PTD #2110770) 7K -12B (PTD #2091430) P -25 (PTD #1970260) SEAMED MAY 0 7 2013 Y -20A (PTD #2010250) Y -23B (PTD #2031640) All the wells listed above are reclassified as Not Operable until start -up operations commence and are stable or the well passes a pressure test confirming integrity. After start-up, the wells will be reclassified as Under Evaluation with POP parameters to prevent any over - pressure incidents if integrity has not been confirmed. Please call with any questions or concerns. Thank you, Mehreen Vazir BP Alaska - Well Integrity Coordinator WIC Office: 907.659.5102 WIC Email: AKDCWeIIIntegrityCoordinator @ BP.com Direct Cell: 832.651.5253 Direct Email: Mehreen.Vazir @BP.com 1 STATE OF ALASKA ALAS OIL AND GAS CONSERVATION COMMISS N REPORT OF SUNDRY WELL OPERATIONS 1. Operations Abandon ❑ Repair Well ❑ Plug Perforations ❑ Stimulate Other ❑ Performed: Alter Casing ❑ Pull Tubing ❑ Perforate New Pool ❑ Waiver Time Extension ❑ Change Approved Program ❑ Operat. Shutdown ❑ Perforate 0 Re -enter Suspended Well ❑ 2. Operator BP Exploration (Alaska), Inc. 4. Well Class Before Work: 5. Permit to Drill Number: Name: Development 0 Exploratory ❑ 11. 209 -1430 3. Address: P.O. Box 196612 Stratigraphic Service ❑ 6. API Number: Anchorage, AK 99519 -6612 ,w 50- 029 - 21759 -02 -00 8. Property Designation (Lease Number) : r 9. Well Name and Number: ADLO- 028303 w PBU K -12B 10. Field /Pool(s): PRUDHOE BAY FIELD / PRUDHOE OIL POOL 11. Present Well Condition Summary: Total Depth measured 11305 feet Plugs (measured) None feet true vertical 8804.9 feet Junk (measured) None feet Effective Depth measured 11221 feet Packer (measured) 7952, 8394 8500 9875 feet true vertical 8812 feet (true vertical) 7732. 8150 8251 8911 feet Casing Length Size MD TVD Burst Collapse Structural Conductor 20" 91.1# H-40 28 - 108 28 - 108 Surface 13 -3/8" 72# L -80 27 - 2688 27 - 2688 4930 2670 Production 9 -5/8" 47# L -80 26 - 8142 26 - 7911 6870 4760 Liner 7" 29# L -80 7975 - 7980 7754 - 7758 8160 7020 Liner 7" 26# L -80 7980 - 8676 7758 - 8418 7240 5410 Liner 4 -1/2" 12.6# L -80 8500 - 11303 8251 - 8805 8430 7500 Perforation depth: Measured depth: SEE ATTACHED - _ _ _ _ True Vertical depth: _ _ Tubing: (size, grade, measured and true vertical depth) 4 -1/2" 12.6# 13CR85 25 - 8508 25 - 8259 Packers and SSSV (type, measured and true vertical depth) 9 -5/8" X 7" BKR HRD ZXP LTP 7952 7732 MAR +1h�Ik 7" X 4-1/2" HES TNT PKR 8394 8150 MAR L U ! 1 7" X 5" ZXP LTP 8500 8251 3.7" BOT MODIFIED KB PKR 9875 8811 12. Stimulation or cement squeeze summary: RECEIVED Intervals treated (measured): Treatment descriptions including volumes used and final pressure: MAR 01 13. RepresentaWklialiggfrorkilinsi 011049111510aa Oil -Bbl Gas -Mcf Wits tw," :- Casing Pressure Tubing pressure Prior to well operation: 162 14,533 8 986 Subsequent to operation: 178 14,632 6 1,057 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Exploratory Development El • Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: Oil f ID Gas ❑ WDSPL ❑ GSTOR ❑ WINJ ❑ WAGE' GINJ ❑ SUSP❑ SPLUG ❑ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: NA Contact Joe Lastufka Printed Na = . - Lastufk, ' I Title Data Manager et Signatu - VW i i V Phone 564 - 4091 Date 3/15/2011 RBDMS MAR 2 1 101 Form 10-404 Revised 10/2010 3 Z(- (( Submit Original Only ..t 773C4 K -12B 209 -143 PERF ATTACHMENT Sw Name Operation Date Perf Operation Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd Depth Base K -12B 5/17/10 PER 9,900. 10,940. 8,906.34 8,826.7 K -12B 5/17/10 PER 11,010. 11,190. 8,824.51 8,814.53 K -12B 3/7/11 APF 9,314. 9,333. 8,939.8 8,947.6 K -12B 3/7/11 APF 9,333. 9,358. 8,947.6 8,956.35 AB ABANDONED PER PERF APF ADD PERF RPF REPERF BPP BRIDGE PLUG PULLED SL SLOTTED LINER BPS BRIDGE PLUG SET SPR SAND PLUG REMOVED FCO FILL CLEAN OUT SPS SAND PLUG SET FIL FILL SQF SQUEEZE FAILED • MIR MECHANICAL ISOLATED REMOVED SQZ SQUEEZE MIS MECHANICAL ISOLATED STC STRADDLE PACK, CLOSED MLK MECHANICAL LEAK STO STRADDLE PACK, OPEN OH OPEN HOLE • • • K -12B DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 3/6/20111MIRU CTU #8. Objective: Drift/tag, set ported KB packer, shoot 2 7/8" guns, MU 1, PDS 2 7/8" carrier w/ 6' of 3.7" drift. Perform fluid pack of wellbore w/ safelube KCL ' and cap with 10 bbls meth. RIH, stop @ 10,000'. Log @ 45 fpm paint referance flag at 9825' and 9264', cont 45 fpm to 8300'. pooh. ck data. !* *job continued on WSR 03- 07 -11 ** g � 1 3/7/2011 continued from WSR 03 -06 -11 CTU * w/ 1.75" CT.. Scope; set modified packer / add perf.. Confirm memory data good; +18' correction. RIH w/ 3.7" BOT KB modified packer w/ .2" choke sub below packer (5.78' oal; packer and choke sub) Set at 9875' I mid element. pooh. MU /RIH w/ Gun #1: 25' of 2 7/8" guns. Tag KB packer for depth 'control. Shoot interval 9333' -9358' © 6 spf. MU /RIH w/ Gun #2: 19' of 2 7/8" gun. Shoot interval 9314 -9333. pooh. Freeze protect well down CT backside while pooh. confirmed all shots fired. BD BHA.. * *job continued on WSR 03 -08 -11 ** 3/8/2011 continued from WSR 03- 07 -11. Perform weekly BOP test. Rig down. * *job complete ** FLUIDS PUMPED BBLS 229 60/40 METH 100 1% KCL W/ SAFE LUBE 329 TOTAL TREE = CM/ • • 1 WELLHEAD MCEVOY SAFETY NOTES: WELL ANGLE > 70° @ 9355'. ACTUATOR = BAKER C K • 1 2 B ***4-1/2" CHROME TBG' * *ORIG WELL & K -12A KB. ELEV = 52.8' NOT SHOWN BELOW WHIPSTOCK* ** BF. ELEV = 24.96' I ' KOP = 8142' Max Angle = 101° @ 9585' I 2207' 1-- 14 -1/2" HES X NIP, ID = 3.813" Datum MD = 9173' ' Datum TVD = 8800' SS GAS LIFT MANDRELS 13 -3/8" CSG, 72 #, L -80 -I 2688' H/ ST MD 1VD DEV TYPE VLV LATCH PORT DATE BTRS, ID = 12.347" 4 3065 3065 0 MMG DOME RK 16 05/23/10 3 5552 5541 17 MMG SO RK 20 05/23/10 2 7208 7044 24 MMG DMY RK 0 05/19/10 1 8282 8043 19 KBG2 DMY BK 0 05/19/10 Minimum ID = 3.725" @ 8496' 4-1/2" HES XN NIPPLE 7952' J- 9 -5/8" X 7" BKR HRD ZXP LTP w / TIEBACK SLV & HMC LNR HGR, ID = 6.276" 1'1 '1 111 1 • 1 4 1 • • 4 I I9 -5/8" BOT WHIPSTOCK (05/02/10) H 8142' I- 1 1 1 MILLOUT WINDOW (K -12B) 8125' - 8142' 4 44 s 19-5/8" CSG, 47 #, L -80, ID = 8.681" 1-1 8650' I 8359' H4-1/2" HES X NIP, ID = 3.813" 8394' I-17" X 4 -1/2" HES TNT PKR, ID = 3.856" I 1:i PERFORATION SUMMARY to ill 8425' -14 -1/2" HES X NIP, ID = 3.813" 1 REF LOG: MWD GAMMA LOG on 05/17/10 ANGLE AT TOP PERF: 64° @ 9314' \ 11 Note: Refer to Production DB for historical pert data 8 I- I4 -1/2" H E S XN NIP, ID = 3.725" SIZE SPF INTERVAL Opn /Sqz DATE 2 -7/8" 6 9314 - 9333 0 03/07/11 2 -7/8" 6 9333 - 9358 0 03/07/11 8500' I- 7/2":_H " X 5 " HRD ZXP LTP w T�BACK 2 -7 /8" 6 9900 - 10940 0 05/17/10 SLV, ID = 4.4 2 -7/8" 6 11010 - 11190 0 05/17/10 , 8508' H - 1/2" WL ID= 3.958" I 1 $5 17' I — 7" X 5" HRD BKR FLIXLOCK I4 -1/2" TBG, 12.6 #, 13CR -85 VA TOP, .0152 bpf, ID = 3.958" H 8508' LNR HGR, ID = 4.400" 8526' I--I5" X 4-1/2" XO, ID = 3.930" I 7" LNR, 29 #, L -80 BTC-M, .0371 bpf, ID = 6.184" H 8676' ii 9875' I— 3.7" BOT MODIFIED KB PKR — — _ go = I PBTD I-I 11221' j 4 S 14-1/2" LNR, 12.6 #, L -80 ET, .0152 bpf, 10= 3.958" H 11303' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/26/87 ORIGINAL COMPLETION 07/09/10 MMIJMD 7" LNR CORRECTION WELL: K -12B 01/14/01 CTU SIDETRACK 03/09/11 RMWPJC KB PKR w / CHOKE/ ADPERF (3/7/11) PERMIT No: '2091430 05/19/10 D-14 SIDETRACK (K -12B) API No: 50- 029 - 21759 -02 -00 05/22/10 PJC DRLG HO CORRECTIONS SEC 4, T11 N, R14E, 1695' FNL, 4170' FWL 05/31/10 RCT /PJC GLV C/O (05/23/10) 06/28/10 MM/JMD DRLG DRAFT CORRECTIONS BP Exploration (Alaska) 02/23/11 Schhilderge NO. 5698 Alaska Data & Consulting Services Company: State of Alaska 2525 Samba Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 99503-2838 Attn: Christine Shartzer ATTN: Beth 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Well Job # Log Description Date BL Color CD P2-31A BCRD-00081 TEMP & X/Y CALIPER SURVEY . --- 02/06/11 1 fr/r.;.- 1 E-03A BL65-00015 SCMT ) -/ 01/27/11 if 1 1 04-21 BG4H-00031 PRODUCTION , - - I U_ 02/02/11 1 - MAT I 04-17 BG4H-00029 INJECTION PROFILE / - - ' 01/31/11 1 1 41 10 P2-52 BCRD-00082 PRODUCTION PROFILE 1 '1 -. - ,, i 02/09/11 1 1 11-04A BG4H-00032 X-FLOW CHECK/IBP i "" zi- b _A 02/06/11 1 ktrA 1 W-202 BMSA-00005 ISOLATION SCANNER —1 01/30/11 Q5thi 1 1 15-26B BD88-00088 MCNL / 4 1- I, ''' 12/13/10 1 1 e2 15-11C BD88-00081 MCNL a,.. — /6" 01/06/11 S 1 07-09A BD88-00078 MCNL ' i8 - / if,, 12/08/10 1 1 E-35B 12/05/10 1 ar 1 6 'I- 41 1.4IP K-1213 BCUE-00094 MCNL ' Cle - BD88-00077 MCNL /O - / to BAUJ-00055 MCNL - 11/23/10 11/21/10 el B-04A 1 1 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc Alaska Data & Consulting Services Petrotechnical Data Center LR2-1 2525 Seethe,' Street, Suite 400 900 E. Benson Blvd. Anchorage, AK 99503-2838 • 7 , , ,,,,,,,, . 7 - MAR 1 4 2 mitvikri 4A A %,,,,, Como, Occrtmill AR,c, 12/17/10 Schkriberger NO. 5667 Alaska Data & Consulting Services Company: State of Alaska 2525 Gambill Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 99503 -2838 Attn: Christine Shartzer ATTN: Beth 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Well Job # Log Description Date BL Color CD NK-65A BCRD -00064 RST SO - 10/21/10 ■ 1 G -09B 11649989 MCNL REDO , ♦ -t _ 09/11/07 Phi. (y 7 1 06 -24A BCRD -00068 MEM • -- • 11/12/10 1 r..4 • , 1 • 01 -O6A BCRD -00063 RST — O I 10129/10 w� 1 G -298 AWJI -00113 MCNL = /L 10/06/10 A 1 W -37A BD88 -00048 MCNL a / 09112/10 ;egg 1 05-07 BBKA -00077 LDL / 4 — ` /,:l 11/24/10 e 1 12 -29 B5JN -00067 USIT —I __ 10/13/10 1 1 K -12B BL65 -00002 Igi`J9:U7U9aaldlt j ♦i< .C" , 17-16 BBSK -00036 PROD PROFILE � K • -126 BCUE -00094 MEM PROD PROFLE r1' ∎- L r gt.4 1 11/22110 7 •��/ 1 ■ K -12B BCUE -00094 MEM PROD PROFLE .� f � a. 11/23/10 . 04,r (f 1 12-04A B5JN-00069 USIT — ■ 11 /02/10 _ . 1 1 09 -25 AV1H -00048 • - USIT , — III�vJFar7; i�•3 � • M:. 1 06 -02 BBKA -00075 • 11/19/10 IOW - 1 18. BCZ2- 00028 _ ∎ — 11/07110 1 ■ PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Alaska Data & Consulting Services Petrotechnical Data Center LR2 -1 2525 Gambill Street, Suite 400 900 E. Benson Blvd. Anchorage, AK 99503 -2838 R E V'E t vE D . • SCANNED MAY 0 7 2013 ptiC 3 ©20 0 0 s kr 0... • �V\ DATA SUBMITTAL COMPLIANCE REPORT 8/25/2010 Permit to Drill 2091430 Well Name/No. PRUDHOE BAY UNIT K-126 Operator BP EXPLORATION (ALASK~y INC API No. 50-029-21759-02-00 MD 11305 TVD 8805 Completion Date 5/19/2010 Completion Status 1-OIL Current Status 1-OIL UIC N REQUIRED INFORMATION Mud Log No Samples No Directional Survey Yes DATA INFORMATION Types Electric or Other Logs Run: DIR / GR / RES,DIR / GR / RES / NEU /DEN (data taken from Logs Portion of Master Well Data Maint Well Log Information: Log/ Electr Data Digital Dataset Log Log Run Interval OH / Type Med/Frmt Number Name Scale Media No Start Stop CH Received Comments ___. ED C Lis 19927 Induction/Resistivity 7907 11254 Open 7/28/2010 LIS Veri, GR, RPS, RPD, FET, RPX, RPM, ROP, FCNT, NCNT Plus Graphics Log Induction/Resistivity 25 Col 8125 11305 Open 7/28/2010 MD EWR, DGR, CTN, ALD Log Induction/Resistivity 25 Col 8125 11305 Open 7/28/2010 TVD EWR, DGR, CTN, ALD Well Cores/Samples Information: Name ADDITIONAL INFORMAZION Wefl Cored? Y N Chips Received? ~YTN~ Analysis J' / N Received? Sample Interval Set Start Stop Sent Received Number Comments Daily History Received? ~/ N Formation Tops ~ N • • Comments: DATA SUBMITTAL COMPLIANCE REPORT 8/25/2010 Permit to Drill 2091430 Well Name/No. PRUDHOE BAY UNIT K-126 Operator BP EXPLORATION (ALASK/~y INC API No. 50-029-21759-02-00 MD 11305 TVD 8805 Completion Date 5/19/2010 Completion Status 1-OIL Current Status 1-OIL UIC N Af Compliance Reviewed By: _ ~ __-_- Date: ~,_~_ l,(' •I WELL LOG TRANSMITTAL To: State of Alaska Alaska Oil and Gas Conservation Commission Attn.: Christine Mahnken 333 West 7~ Avenue, Suite 100 Anchorage, Alaska 99501-3539 RE: LWI} Formation Evaluation Logs: K-12B July 22, 2010 AK-MW-0007262434 K-12B 50-029-21759-02 2" x 5" MD GAMMA-RESISTIVITY Logs: 2" x 5" TVD GAMMA-RESISTIVITY Logs: Digital Log Images & LWDG-formatted LIS Data w/verification listing; 1 Color Log 1 Color Log 1 CD Rom PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry Drilling Attn: Bryan Burinda 6900 Arctic Blvd. Anchorage, Alaska 99518 Office: 907-273-3536 Fax: 907-273-3535 Brya i com ,-~ ~`~r~~3 19~a~ ~' ,,; Date: -°`~~' ~ ~ ~"`~ Signed: ~" n STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1a. Well Status: ®Oil ^ Gas ^ SPLUG ^ Other ^ Abandoned ^ Suspended 1b. Well Class: zoAAC2s.~os ~ zoAACZS.»o ®Development ^ Exploratory ^ GINJ ^ WINJ ^ WAG ^ WDSPL ^ Other No. of Completions One ^ Service ^ Stratigraphic 2. Operator Name: 5. Date Comp., Susp., or Aband.: 12. Permit to Drill Number: BP Exploration (Alaska) Inc. 5/19/2010 209-143 3. Address: 6. Date Spudded: 13. API Number: P.O. Box 196612, Anchorage, Alaska 99519-6612 5/4/2010 50-029-21759-02-00 4a. Location of Well (Governmental Section): 7. Date T.D. Reached: 14. Well Name and Number: Surface: 5/13/201 PBU K-126 1695' FNL, 1110' FWL, SEC. 04, T11 N, R14E, UM 8. KB (ft above MSL): 57.46' 15. Field /Pool(s): Top of Productive Horizon: ' ' GL (ft above MSL): 23 76' Prudhoe Bay Field / Prudhoe Bay FWL, SEC. 04, T11 N, R14E, UM FNL, 756 2646 . Total Depth: 9. Plug Back Depth (MD+TVD): Oil Pool 1081' FNL, 1976' FWL, SEC. 04, T11 N, R14E, UM 11221' 8812' 4b. Location of Well (State Base Plane Coordinates, NAD 27): 10. Total Depth (MD+TVD): 16. Property Designation: _ 5975524 Zone- ASP4 : x- 671372 rf S 11305' 8805' ADL 028303 u ace y TPI: x- 671042 y- 5974564 Zone- ASP4 11. SSSV Depth (MD+TVD): 17. Land Use Permit: Total De - 5976158 Zone- ASP4 th: x- 672222 None p Y if ff h Thickness of Permafrost (TVD): 20 ore: s 19. Water depth, o . 18. Directional Survey: ®Yes ^ No N/A ft MSL 1900' (Approx.) Submit electronic and tinted information er 20 AAC 25.050 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re-DrilULateral Top Window MD/TVD: DIR / GR /RES, DIR / GR /RES / NEU /DEN 8125' 7895' 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH ND HOLE AMOUNT CASING WT. PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 0" n rf 1 rf 11 cu r 7 # L-80 / S-95 7- 1860 cu ft Arcticset I II To Job: 267 cu ft AS I 9-5/8" 47# L- 0 2' 7 9' 1 -1 4" 11 cu ft l 'G' w z A I 7" 29# 9 8 76' 77 2' 41 8-1/2" 162 Cla ' ,~ 11 - ~~ 24. Open to production or injection? ®Yes ^ No 25. TUBING RECORD If Yes, list each interval open d N b P rf i Si SIZE DEPTH .SET MD PACKER .SET MD / ND er): ze an um orat on (MD+TVD of Top & Bottom; e ' ' ' f 2-7/8" Gun Diameter 6 s 4-1/2", 12.6#, 13Cr80 / 13Cr85 8508 / 8150 8394 , p MD TVD MD TVD 9900' - 10940' 8906' - 8827 11190' 8825' - 8815' 11010' 26, ACID, FRACTURE, CEMENT SQUEEZE, ETC. - A'~ ~ DEPTH INTERVAL (MD AMOUNT AND KIND OF MATERIAL USED ~ r 2130' Freeze Protected w/ 145 Bbls of Diesel 27, PRODUCTION TEST Date First Production: Method of Operation (Flowing, Gas Lift, etc.): June 1, 2010 Flowin Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 6/8/2010 10 Test Period 78 9,729 -0- 95 125,217 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API (CORK): Press. 1,100 1,260 24-Hour Rate • 186 23,350 -0- 26 28. CORE DATA Conventional Core(s) Acquired? ^Yes ®No Sidewall Core(s) Acquired? ^Yes ®No If Yes to either question, list formations and intervals cored (MD+TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 250.071. RECEIVEC~ None JUN 1 1 210 N 14 20~ Form 10-407 Revised 12/2009 - - CONTINUED ON REVERSE At1ChOf8~~omi[ vnginai umy 29. GEOLOGIC MARKERS (List all formations and ma encountered): 30. RMATION TESTS NAME MD TVD Well Tested? ^ Yes ®No Permafrost Top If yes, list intervals and formations tested, briefly summarizing test results. Attach separate sheets to this form, if needed, and submit Permafrost Base detailed test information per 20 AAC 25.071. Base HRZ 8045' 7820' None LCU 8072' 7845' Sag River 8672' 8414' Shublik A 8724' 8463' Sadlerochit 8798' 8533' Top CGL /Zone 3 8896' 8626' Base CGL /Zone 2C 8967' 8692' 23S6 /Zone 28 9009' 8729' 22TS 9056' 8769' 21 TS /Zone 2A 9130' 8827' Zone 1 B 9225' 8892' TDF /Zone 1A 9281' 8924' Base Sadlerochit /Top Kavik 9359' 8957' Base Sadlerochit /Top Kavik 9854' 8914' Formation at Total Depth (Name): TDF /Zone 1A 9281' 8924' 31. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 32. 1 hereby certify that the foregoin is true and correct to the best of my knowledge. O/_ /~ t ~ lJ / ~ l Signed: Terrie Hubble Title: Drilling Technologist Date: PBU K-12B 209-143 Prepared By Name/Number. Terrie Hubble, 564-4628 Well Number Permit No. /Approval No. Drilling Engineer: Maria Medvedeva, 5645786 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Mukiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPt (Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). Item 28: Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 12/2009 Submit Original Only North America -ALASKA - BP Page 1 of 1 Operation Summary Report Common Welt Name: K-12 DIMS AFE No Event Type: MOBILIZATION (MOB) Start Date: 4/28/2010 End Date: 4/29/2010 X3-OOTW5-C (683,556.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 ~ Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-126 @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 4/28/2010 _ 00:00 - 01:00 1.00 MOB _ P PRE SKID RIG FLOOR 01:00 - 03:00 2.00 MOB ~ P i PRE MOVE RIG OFF OF WELL P2-22A SPOT ON PAD 03:00 - 05:00 ( 2.00 MOB P PRE REMOVE CELLAR DOORS, HEATERS, & MOUSEHOLE JNSTALLREAR BOOSTERS 05:00 - 06:00 1.00 I I MOB P PRE i MOVERIG TO P2 PAD ENTRANCE - -- -- - - 06:00 - 07:00 -- 1.00 - MOB P PR~ WAIT ON SECURITY 07:00 - 13:30 6.50 MOB P PRE MOVE RIG FROM P2 TO K-PAD 13:30 - 14:00 0.50 MOB P PRE REMOVE REAR BOOSTERS HANG CELLAR DOORS 14:00 - 16:00 2.00 MOB P PRE MOVE TO OTHER SIDE.OF THE PAD SPOT RIG OVER WELL'K-12 _ 16:00 - 16:15 0.25 MOB P PRE PRE-JOB SAFETY'MEETING ON SKIDDING RIG FLOOR 16:15 - 17:30 1.25 MOB P PRE ' SKID RIG fLOOR INTO POSITION 17:30 - 22:00 4.50 MOB ° P' PRE RIG UP RIG FLOOR RIG UP LINES AND FITTINGS SPOT OPEN TOP TANK i ~ ~ WEATHER PROOF THE RIG POSITION AND RIG UP ROCK WASHER AND CONVEYOR _ __ _ 22:00 - 00:00 2.00 ~ MOB. P i PRE i ACCEPT DOYON 14 ON 04/28/2010 AT 22:00 HRS TAKE ON SEAWATER INTO PITS CHECK PRESSURES ON WELL ~ -TUBING/ IA: 0 PSI - OA: 0 PSI ~ ~ ~ i INSTALL HARD LINE FROM RIG TO OPEN TOP STANK RIG UP TO PRESSURE TEST AN_D DISPLACE _ 4/29/2010 _ ~ 00:00 - 01:30 _ 1.50 RIGU P PRE RIG UP AND PRESSURE TEST HARD LINE LEADING TO OPEN TOP TANK 2,000 PSI _ - NO LEAKS _ __ 01:30 - 03:30 2.00 RIGU ~ P PRE SPOT HOT OIL TRUCK ~ TEST LINES TO 2,500 PSI ~ - NO LEAKS RIG UP ON OA i PRESSURE UP ON OA - 2,000 PSI FOR 30 MINUTES i BLEED OFF PRESSURE AND BLOW DOWN LINES 03:30 - 04:30 ~ 1.00 RIGU P ' PRE RIG UP AND TEST TBG X IA l ~ J ~ ~ f - 2,500 PSI FOR 30 MINUTES _ _ Printed 6/7/2010 11:09:46AM • C~ North America -ALASKA - BP Page 1 of 17 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTWS-C (2,259,658.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud DatelTime: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-126 @57.5ft (above Mean Sea Level) Date From - To ! Hrs ~ Task Code NPT NPT Depth Phase ~ Description of Operations (hr) ~ (ft) _ ' 4/29/2010 _ 04:30 - 06:00 1.50 BOPSUR P _ DECOMP RIG UP AND TEST TBG X IA - 2,500 PSI FOR 30 MINUTES RIG UP DSM LUBRICATOR. TEST TO 500 PSI. PULL BACK PRESSURE VALVE FROM TUBING ~ HANGER. RlG DOWN LUBRICATOR. _ - - - -T 06:00 - 08:00 j 2.00 ( BOPSUR P _ DECOMP REVERSE CIRCULATE SEAWATER DOWN IA 3 BPM,b00 PSI ! ! TAKING RETURNS OUT THE TUBING. ~ RECOVERED 22 BBL DIESEL TO OPEN TOP TANK. CHANGE LINES TO CIRCULATE DOWN THE TUBNG TAKING RETURNS FROM THE IA. PUMP 30 BBL SAFE SURF O PILL FOLLOWED ' AND 220 BBL SEAWATER - 4 BPM, 570 PSI: -RECOVERED 153 BBL DIESEL TO OPEN TOP ! T,4NK. j 08:00 - 08:30 0.50 BOPSUR P DECOMP STOP CICULATING TO RECOVER 175 BBL I - DIESEL FROM OPEN TOP TANK FOR RECYCLING - -- -- 08:30 - 10:30 2.00 BOPSUR P ! DECOMP CIRCULATE SAFE SURF O PILL TO SURFACE. i ! CONTINUE CIRCULATING TO CLEAN SEAWATER i _ - 4 BPM, 580 PSI. RETURNS TO OPEN TOP TANK. 10:30 - 14:30 4.00. BOPSUR P ~I DECOMP CAMERON TECH INSTALL TWO WAY CHECK I VALVE IN TUBING HANGER FROM RIG FLOOR. ' TEST FROM BELOW WITH 1.000 PSI FOR 10 ! MINUTES. ATTEMPT TEST FROM ABOVE WITH 3,500 PSI FOR 10 MINUTES. NOT HOLDING. PRESURE BLEEDING OFF SLOWLY. CHECK SURFACE LINES. LUBRICATE AND WORK MASTER VALVE ON TREE. BLEED AIR FROM ~ TOP OF TREE. FILL ANNULAR WITH WATER TO ! ! CONFIRM TWC HOLDING. PRESSURE LOSS GRADUALLY SLOWING DOWN. SUSPECT AIR ! TRAPPED IN TREE. PRESSURE LOST 200 PSI DURING FIR T HALF OF TE T A D 1 P I ! ~ ' DURING SECOND HALF. RIG DOWN TEST LINES. BLOW DOWN LINES. 14:30 - 15:30 1.00 BOPSUR P DECOMP BLOW DOWN LINES RIG DOWN TEST LINES HOOK UP TO OA AND BLEED 1,400 PSI TO 0 BLOW DOWN LINE ____ 15:30 - 15:45 0.25 BOPSUR P DECOMP PRE-JOB SAFETY MEETING ON NU/ND 15:45 - 18:00 2.25 ~ BOPSUR P I DECOMP ,REMOVED FLUID FROM TREE BREAK CONNECTION AT TREE AND ADAPTER I i CAMERON CHECKED LOCK DOWNS ) INSERT ADSORB INTO OPENEINGS AND WRAP ! i WITH PLASTIC BAGS AND TAPE REMOVE TREE FROM CELLAR MAKE UP CROSS OVER IN TUBING HANGER TO CHECK THREADS Printed 617/2010 11:10:25AM F~ • North America -ALASKA - BP P~ye ~ of i' Operation Summary Report -- _ _ ---- Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTWS-C (2,259,658.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. I UWI: Active Datum: K-126 @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth ~ i Phase Description of Operations (hr) (ft) 18:00 - 23:00 5.00 BOPSUR P DECOMP NIPPLE UP THE SPACER SPOOL AND BOP STACK INSTALL CHOKE LINE INSTALL TURNBUCKLES, RISER, FLOW LINE, AND HOLE FILL LINE INSTALL MOUSE HOLE 23:00 - 00:00 ~ 1.00 I BOPSUR P DECOMP MAKE UP CROSS OVER ON TEST - - 4/30/2010 - 00:00 - 05:00 ---~I 5.00 ' -__ BOPSUR P _..._- I --- DECOMP SCREW INTO HANGER RIG UP TO TEST ROPE _ - - TEST.BOPE WITH 3-1/2" TEST JOINT -ANNULAR PREVENTOR - 250 PSI LOW, 2,500 i PSI HIGH - UPPER RAMS, CHOKE,'& VALVES - 250 PSI LOW, 3,500 PSI HIGH' TEST ROPE WITH 4-1/2"TEST JOINT ~ I -UPPER RAMS-250 PSI LOW, 3,500 PSI HIGH i TEST WITNESSED BY BP WSL ZACH SAYERS & DICK MASKELL, DOYON TP HARRY GOUCHENAUER - AOGCC WITNESS WAIVED BY JOHN CRISP 05:00 - 05:30 0.50 BOPSUR ! P ~ ~ DECOMP BACK OUT TEST JOINT AND LAY DOWN. RIG ~ ~ DOWN TEST LINES AND EQUIPMENT 05:30 - 06:00 ! 06:00 - 07:00 0.50 1.00 i _ BOPSUR BOPSUR P P _ ! DECOMP DECOMP INSTALL DUTCH LUBRICATOR EXTENSION RIG UP DSM LUBRICATOR. TEST TO 500 PSI. PULL TWC FROM TUBING HANGER. RIG DOWN DSM LUBRICATOR. 07:00 - 07:30 0.50 BOPSUR P DECOMP RIG DOWN DUTCH LUBRICATOR EXTENSION 07:30 - 08:00 ; 0.50 PULL P DECOMP CALIBRATE BLOCK HEIGHT FOR DRILLING i _ RECORDER. EMPTY STACK OF WATER 08:00 - 10:00 ~ 2 00 PULL P , DECOMP BRING TOOLS TO FLOOR. RIG UP TO PULL 3 1/2" . ! TUBING. RIG UP CONTROL LINE SPOOLING UNIT 10:00 - 10:30 0.50 PULL P DECOMP ON RIG FLOOR. pJSM ON PULLING TUBING HANGER TO RIG I ~ FLOOR. SCREW INTO TUBING HANGER WITH XO ~ AND ONE JOINT OF DRILL PIPE AND TOP DRIVE. UNSEAT TUBING HANGER WITH 130 K. PULL TO RIG FLOOR WITH 115K. i 10:30 - 12:00 1.50 i PULL P DECOMP ESTABLISH CIRCULATION - 84 GPM, 240 PSI i CIRCULATE BOTTOMS UP FROM CUT AT 8 20 ' -~ ~ 12:00 - 12:15 .25 ULL ( P I ECOMP - 256 GPM, 560 PSI -CLEAN RETURNS COMING BACK - NO GAS SEEN ON BOTTOMS UP __ pRE-JOB SAFETY MEETING ON PULLING 3-1/2" TUBING Printed 6/7/2010 11:10:25AM ~~ E, 9 North America -ALASKA - BP Page 3 of 17 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTW5-C (2,259,658.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud DatelTime: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:15 - 21:00 8.75 PULL P DECOMP LAY DOWN 3-1/2" 9.3# EUE TUBIN -NUMBER ALL JOINTS EXCEPT COMPLETION EQUIPMENT ~ - TOTAL OF 252 JOINTS, 4 GLM, 1 BALL VALVE, 2`FLOW COUPLINGS, 1 CUT JOINT ~ -CUT JOINT LENGTH = 5' WITH 4-1/2" OD FLARE ~ -INTERNAL PITTING IN TUBING - 4 SSBANDS RECOVERED, 31 RUBBER CLAMPS & PINS 12 00 22:00 1.00 PULL P DECOMP . CLEAN CASING EQUIPMENT LAY DOWN TONGS, AIR SLIPS, ELEVATORS, AND HAND'SLIPS 22:00 - 22:30 0.50 PULL P DECOMP RIG UP TO TEST 3-1/2" X 6" LOWER VARIABL RAMS WITH.4-1/2" & 3-1/2" TEST JOINTS 22:30 - 23:00 0.50 PULL p DECOMP TEST 3-1/2" X 6" LOWER VARIABLE RAMS WITH 4-1/2" & 3-1f2" TEST JOINTS -.250 PSI LOW, 3,500 PSI HIGH ~ 23:00 - 00:00 1.00 PULL P _ ' DECOMP -TEST GOOD _ RIG DOWN TESTING EQUIPMENT PULL TEST PLUG I INSTALL WEAR RING 1 5/1/2010 0 - 01:45 000 1.75 CLEAN P WEXIT MOBILIZE BAKER TOOLS TO THE RIG FLOOR -- - -- 01:45 - 02:00 0.25 CLEAN P WEXIT PRE-JOB SAFETY MEETING ON RUNNING IN ~, 9-5/8" CASING CLEAN OUT ASSEMBLY 02:00 - 04:00 2.00 CLEAN P WEXIT MAKE UP BAKER CLEAN OUT ASSEMBLY - 8-1/2" USED INSERT BIT ~ - 9-5/8" CASING SCARAPER - 7" BOOT BASKET - 7" BOOT BASKET -BIT SUB WITH FLOAT - 8-1/2" OD UPPER STRING MILL ' - 6-1/4"BUMPER SUB - XO SUB - (9) 6-1/4" COLLARS ~ - XO SUB - (15) HWDP - XO SUB _ 04:00 - 10:30 6.50 CLEAN P WEXIT ~ CHANGE OUT ELEVATORS RIH WITH 4" DRILL PIPE -PICKING UP SINGLES -TAG 3-1/2" TUBING STUB AT 8,200' ' -PICK UP 60' FROM TUBING STUB --- _ ~ __- 'i 10:30 - 13:00 _ 2.50 - CLEAN t j P -- WEXIT CIRCULATE AROUND SURFACE TO SURFACE 30 ~ BBL HIGH VISC PILL. - 7.5 BPM, 780 PSI i - RECRIPROCATE PIPE 90' WHILE CIRCULATING - _ _ 031 0 - 13:15 0.25 CLEAN P WEXIT PRE-JOB SAFETY MEETING ON PULLING OUT OF HOLE 13:15 - 15:30 2.25 CLEAN P WEXIT POOH FROM 8,200' TO 850 FT -STAND 4" DRILL PIPE IN DERRICK. + '~ 15:30 15:45 0.25 CLEAN - P WEXIT PRE-JOB SAFETY MEETING ON SLIP AND CUT 15:45 - 16:00 0.25 CLEAN P WEXIT MOBILIZE TOOLS TO RIG FLOOR Printed 6/7/2010 11:10:25AM i North America -ALASKA - BP Page 4 of 17 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTW5-C (2,259,658.00 USD) ~ -- --- Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud DatelTime: 12/2812000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.Sft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth ~ Phase Description of Operations (hr) (ft) _ _ 16:00 - 17:30 1.50 CLEAN P WEXIT SLIP AND CUT DRILLING LINE 17:30 - 18:30 1.00 CLEAN P WEXIT CHANGE OUT ELEVATORS RACK BACK HWDP, DRILL COLLARS, & BAKER CLEAN OUT TOOLS STAND BACK 5" HWDP AND DRILL COLLARS. 18:30 - 19:00 0.50 ~ CLEAN P ___ i WEXIT LAY DOWN BIT, SCRAPER, AND MILL._ 19:00 - 19:30 0.50 WHIP P WEXIT CLEARfLOOR OF ALL TOOLS NOT NEEDED FOR UPCOMING OPERATIONS ~ 19:30 - 19:45 0.25 WHIP P __ WEXIT PRE-JOB SAFETY MEETING ON RIGGING UP E-LINE 19:45 - 21:15 1.50 WHIP P WEXIT RIGUP E-LINE TOOLS MAKE UP EZSV TO`E-LINE'. 21:15 - 23:00 1.75 WHIP P WEXIT RIH WITH EZSV ON E=LINE - 150 FPM 7 8 000' MD P ( i a . . PICK UP TO 8,141' MD SET EZSV AT 8 141' MD 5' ABOVE 9- / " CASING COLLAR -NEXT CASING COLLAR AT 8,146' MD _ 23:00 - 00:00 1.00. WHIP- P WEXIT .POOH WITH E-LINE AND LAY DOWN TOOLS 5/2/2010 , 00:00 - 00:30 0.50 WHIP P WEXIT TEST 9-5/8" CASING AND EZSV ~ - 3,500 PSI, 30 MIN -GOOD TEST 00:30 - 01:00 0.50 WHIP P WEXIT RD TEST EQUIPMENT ~ i BLOW DOWN CHOKE & FILL LINE -- 01:00 - 02:00 1.00 WHIP P WEXIT PULL WEAR RING RU TO PULL 9-5/8" PACK OFF i __ BACK OUT THE LOCK DOWN SCREWS 02:00 - 02:30 0.50 WHIP P WEXIT START PULLING ON 9-5/8" CASING PACK-OFF - 20K INTITIAL PULL -50K ~ -60K ~ -70K PULLED 1-1/2" 02:30 - 03:30 1.00 WHIP P WEXIT PUT STEAM ON WELL HEAD I - CONTINUE TO PULL - NO GIVE i ~ LET WARM UP _ -- _ 03:30 - 05:00 i 1.50 WHIP I P WEXIT START WORKING PACK-OFF AGAIN ~ -75K ~ I - 95K - 103K ~ -PULLED APART WITH 103K OVERPULL BOTTOM TWO RINGS NOT ATTACHED, LEFT IN WELL HEAD 05:00 - 05:15 0.25 WHIP P WEXIT PRE-JOB SAFETY MEETING ON NIPPLING DOWN STACK 105:15 - 08:30 3.25 WHIP P WEXIT NIPPLE DOWN BOP STACK. ~ I ~ REMOVE THE TUBING SPOOL AND SPACER REMOVE CHOKE LINE SPOOL _ _ . . Printed 6/7/2010 11:10:25AM a North America -ALASKA - BP Page 5 of 17 Operation Summary Report Common Well Name: K-12_DIMS ~ AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTW5-C (2,259,658.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud DatelTime: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.5ft (above Mean Sea Level) Date ', From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) __ _ _ 08:30 - 10:30 2.00 ~ _ WHIP P WEXIT RECOVER LOWER TWO RINGS OF OLD ' PACK-OFF. I ' INSTALL NEW 9-5/8" PACK-OFF FROM RIG FLOOR WITH RUNNING TOOL. RUN IN LOCK _ DOWN SCREWS. NIPPLE UP TUBING SPOOL. _ 10:30 - 11:00 0.50 WHIP P _ WEXIT TEST PACK-OFF TO 5,000 PSI FOR 30 MINUTES. TEST INCLUDED THE FLANGE BETWEEN THE CASING HEAD AND TUBING SPOOL. ' 11:00 - 14:30 3.50 WHIP P WEXIT N4PPLEUP BOP AND SAPCER SPOOL. CONNECT CHOKE`LINE. CONNECT RISER TO FLOW LINE. ~~ 1 34 0 - 15:30 1.00 WHIP P WEXIT _ INSTALL TEST PLUG. FILL BOP WITH SEA WATER. TEST'FLANGES BETWEEN TUBING SPOOL AND SPACER SPOOL AND SPACER SPOOL AND BOP TO 250 PSI LOW AND 3,500 ~ PSI HIGH:' -- 15:30 - 16:00 0.50 ~ WHIP P - 'WEXIT LAY DOWN?EST PLUG AND RIG DOWN TEST ~ LINES.. ~ INSTALL WEAR RING -- -.__ 16:00 - 16:30 0.50 WHIP P WEXIT CONDUCT AN UNANNOUNCED ABANDON RIG DRILL USING THE H2S ALARM. ALL HANDS PRESENT AND ACCOUNTED FOR AT THE MUSTER AREA IN 4 MINUTES. PERFORMED AFTER ACTION REVIEW 16 30 - 18:00 1.50 STWHIP' P WEXIT PICK UP 8-1/2" MILLING BHA AND WHIPSTOCK. 0 ~ - 18:15 ( 1 08 0.25 STWHIP P WEXIT SWAP RIG OVER TO HIGHLINE POWER @ 18:00, ~ 05/02/2010 ' ! PRE-JOB SAFETY MEETING ON MAKING UP AND RUNNING 8-1/2" MILING BHA & WHIPSTOCK i 18:15 - 20:30 2.25 STWHIP P __ WEXIT MAKE UP MILLING BHA AND WHIPSTOCK --- ~ _._ - '~ 20:30 - 21:00 0.50 STWHIP P ~ WEXIT MAKE UP DRILL COLLARS &HWDP 2-1:_00 - 00:00 3.00 STWHIP P WEXIT RIH WITH 4" DRILL PIPE FROM 840' TO 5,113' MD 5/3/2010 21:30 - 22:30 1.00 STWHIP P ~ WEXIT LAY DOWN BHA - UBHO SUB, TM, DM, FLOAT SUB, 1 HWDP, UPPER STRING MILL, FLEX JOINT, LOWER ~ STRING, WINDOW MILL -WINDOW MILL MISSING 2-1/4" X 2-1/4" SECTION OF CARBIDE BLADE __ j 00:00 - 00:30 0.50 STWHIP P WEXIT LUBRICATE RIG TOP DRIVE, BLOCKS, AND CROWN 00:30 - 02:30 2.00 STWHIP P WEXIT CONTINUE TO RIH FROM 5,113' TO 8,111' MD 02:30 - 03:00 0.50 i STWHIP P WEXIT ORIENT WHIPSTOCK TO 56 DEG RIGHT OF HIGH SIDE - PUW - 198K, SOW - 185K TAG EZSV AT 8 146' MD SET ANCHOR WITH 18K SET DOWN PULL 15K OVERPULL TO TEST ANCHOR SET -GOOD PU TO SHEAR MILL FREE FROM WHIPSTOCK I -SHEARED AT 40K ~ PU 10' ABOVE WHIPSTOCK 03:00 - 03:15 - 0.25 STWHIP P WEXIT PRE-JOB SAFETY MEETING ON DISPLACEMENT ~ AND MILLING OPERATIONS Printed 6/7/2010 11:10:25AM North America -ALASKA - BP Page s of 17 Operation Summary Report _--- Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTWS-C (2,259,658.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: __ ____ _ Active Datum: K-126 @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) _ 03:15 - 05:00 1.75 STWHIP P WEXIT PUMP 50 BBL SUPER SWEEP PILL DISPLACE SEAWATER WITH 10.4 PPG LSND MILLING FLUID CIRCULATE BOTTOMS UP 05:00 - 13:45 8.75 STWHIP P WEXIT MILL 8-1/2" WINDOW 1 TOP OF WINDOW AT 8,125' BOTTOM OF WINDOW AT 8,142' ~ ~ CENTER OF WINDOW AT 8,134' ~ i ROTATE AT 100 RPM. PUMP AT 400 GPM WITH ~~~. t. ~ ~~ ~ ~ i 1,620 PSI. CUT 30' OF NEW HOLE TO 8,164' HARD CEMENT IN CUTTINGS. __ __ ~ 13:45 - 14:15 0.50 STWHIP P WEXIT WORKMILL THROUGH WINDOW SEVERAL TIMES, WITH AND WITHOUT ROTATING. PUMPS I ON AND OFF _ 14:15 - 15:30 i 1.25 STWHIP P - WEXIT CIRCULATE AROUND 38 BBL "SUPER SWEEP" PILL. WORK MILLS THROUGH WINDOW WHILE CIRCULATING _ - -- - - - 15:30 - 17:00 1.50 STWHIP P - WEXIT ... pOOH`1 STAND TO POSITION MILLS INSIDE j i .... .WINDOW. !. RIG UP LINES TO PERFORM LOT. ~i ! LOT TO EMW 14.89 PPG, 1,840 PSI SURFACE _ - TVD = 7,895' 17:00 - 17:30 ~ 0.50 ~ STWHIP P _ WEXIT PUMP DRY JOB RIG DOWN ALL TEST EQUIPMENT BLOW DOWN CHOKE LINE, CHIKE MAINFOLD, & KILL LINE _ 17:30 - 17:45 0.25 STWHIP`- P ~ WEXIT FLOW CHECK - STATIC 17:45 - 20:30 2.75 STWHIP P WEXIT PU JOINT FROM MOUSE HOLE ~ INSTALL STRIPPING RUBBER, AIR SLIPS POOH WITH 4" DP FROM 8,122' TO 818' MD 20:30 - 21:30 22:30 - 00:00 1.00~ 1.50 -STWHIP i STWHIP ~ P P ~ _ WEXIT WEXIT LAY DOWN (9) 6-1/4" DRILL COLLARS CLEAR RIG FLOOR OF ALL TOOLS NOT NEEDED FOR UPCOMING OPERATIONS 5/4/2010 00:00 - 01:30 1.50 DRILL P WEXIT DRAIN STACK PULL WEAR BUSHING RU & FLUSH STACK WITH BOP JETTING TOOL INSTALL WEAR BUSHING 01:30 - 02:00 02:00 - 02:45 0.50 0.75 DRILL DRILL P P WEXIT WEXIT STAGE BHA COMPONENTS TO RIG FLOOR MAKE UP BHA i -BIT - 7" MOTOR (1.76 DEG BEND) -TM 02:45 - 03:30 0.75 DRILL P WEXIT PERFORM CONFIDENCE TEST ON MWD ~ EQUIPMENT DOWNLINK TO MWD 03:30 - 04:30 1.00 DRILL P WEXIT MAKE UP 6-1/4" NON-MAGNETIC COLLARS -HEAVY WEIGHT DRILL PIPE -JARS SHALLOW TEST MWD Printed 6/712010 11:10:25AM North America -ALASKA - BP Page 7 of 17 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTWS-C (2,259,658.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-126 @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations 04:30 - 07:00 2.50 DRILL P WEXIT RIH WITH 8-1/2" BHA ON 4" DP FROM THE _ DERRICK FROM 654' TO 5967' _ 07:00 - 08:30 1.50 DRILL P WEXIT RIH WITH 8-1/2" BHA ON 4" DP PICKING UP PIPE ~ FROM THE PIPE SHED. FROM 5967 TO 7296' 08:30 - 09:00 0.50 DRILL P WEXIT RIH WITH 8-1/2" BHA ON 4" DP FROM THE DERRICK FROM 7296 TO 7975' 09:00 - 11:30 2.50 DRILL P ~ WEXIT MAD PASS TO OBTAIN GR TIE-IN AT 150 FPH I FROM 7975' TO 8110' 11:30 - 12:00 0.50 DRILL P WEXIT SLIDE THROUGH 9 5/8" WINDOW AT 125' I WITHOUT PUMPING OR ROTATING TO 8164'. WASH TO BOTTOM. SLOWLY. 12:00 - 21:30 9.50 DRILL P INT1 DRILL FROM 8164' TO 8665' MD NO LOSSES TO FORMATION WHILE DRILLING - F'UW 185K, SOW 172K, ROT 180, 15K WOB ~ ~ - 608 GPM, 3690 PSI ON, 3440 PSI OFF - 50 RPM, TO 7K ON, 4K OFF - MW IN 10.4 PPG, OUT 10.5 PPG - ROP`195 FT/HR ROT, 60 FT/HR SLD ' -ART 1.69 HRS, AST 3.58 HRS, ADT 5.27 HRS 21:30 - 00:00 i 2.50 DRILL P j T1 CIRCULATE BOTTOMS UP FOR SAMPLE AT ~ 8,665' MD DRILL TO 8673' MD AND CBU FOR SAMPLE DRILL TO 8678' MS AND CBU FOR SAMPLE - 8-1/2" INTERMEDIATE HOLE TD CALLED BY GEOLOGIST AT 8678' MD - ND 8419' 5/5/2010 00:00 - 00:30 0.50 DRILL P INT1 FINISH CIRCULATING BOTTOMS-UP SAMPLE AT 8678' MD __ ____ 00:30 - 01:30 1.00 ~ DRILL P INT1 FLOW CHECK WELL - NO FLOW I I SHORT TRIP FROM 8678' MD TO 8056' MD -PUW 195K -ORIENT MOTOR PRIOR TO ENTERING WINDOW _ - NO OVERPULLS OR SWABBING OBSERVED 01:30 - 02:30 1.00 DRILL P INT1 CIRCULATE BOTTOMS-UP 1.5X - 563 GPM, 2718 PSI - 50 RPM, TO 3.5K - MW 10.4 PPG IN AND OUT _ 102:30 - 03:00 0.50 DRILL P INT1 RIH TO TD AT 8678' MD i -WASH DOWN LAST STAND _ __ 03:00 - 04:30 1.50 DRILL I P I INT1 CIRCULATE HIGH VISCOSITY SWEEP SURFACE-TO-SURFACE - 578 GPM, 3050 PSI _ _ ' - 60 RPM, TO 3K, RECIPROCATED FUILL STAND 04:30 - 05:30 1.00 DRILL P INT1 POH FROM 8678' MD TO 8245'. ORIENT MOTOR TO 56 DEG RIGHT OF HIGH SIDE AND PULL THROUGH THE 9 5/8" WINDOW. POH TO 8056'. 05:30 - 06:00 0.50 DRILL P INT1 CIRCULATE ONE BOTTOMS UP. 575 GPM WITH ~ 2770 PSI. 60 RPM, 4K TORQUE. Printed 6/7/2010 11:10:25AM North America -ALASKA - BP P~~ge a of 17 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/1512010 X3-OOTW5-C (2,259,658.00 USD) ~ -- Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-126 @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) ___ __ 06:00 - 09:30 3.50 DRILL P INT1 FLOW CHECK AT THE WINDOW. WELL STATIC. PUMP DRY JOB. POH FROM 8056' TO 654'. TOP OF BHA. I I MUD WEIGHT IN AND OUT 10.4 PPG -- --- 09:30 - 11:00 1.50 DRILL P ~ i INT1 LAY DOWN 5" HWDP AND 6 1/4" DRILL ~ 11:00 - 12:00 1.00 I DRILL P ~ __ INT1 ~ _COLLARS. __ DOWN LOAD MWD. FLUSH MUD MOTOR. BREAK BIT 12:00 - 14:00 2.00 DRILL P INT1 CLEAR FLOOR OF DRILL PIPE HANDLING TOOLS. 14:00 - 16:30 2.50 CASING P LNR1 PULL WEAR BUSHING. INSTALL TEST PLUG ON 7" TEST JOINT. RIG UP 7" CASING RUNNING TOOLS. I CHANGE TOP RAMS TO 7". TEST RAMS 250 PSI i ~ LOW, 3500 PSt HIGH _ _ 16:30 - 21:00 4.50 CASING P LNR1 PJSM ON RUNNING 7" LINER PU AND RUN 1'7 JTS OF 7" LINER AS FOLLOWS: I - 7" FLOAT SHOE ( - 7", 29#, L-80, BTC-M JOINT i ~ - 7" FLOAT COLLAR I = 7" 29#, L-80, BTC-M JOINT =INSERT LANDING COLLAR - 7", 29#, L-80, VAM TOP HC LINER (15 JTS) - BAKER HMC LINER HANGER -BAKER ZXP LINER TOP PACKER - -TIEBACK RECEPTACLE LENGTH: 10.73', ID: 7.52„ 21:00 - 21:30 0.50 CASING P _ _ LNR1 RD CASING RUNNING EQUIPMENT __ __ PU ONE STAND OF 4" DP CIRCULATE 1.5X LINER VOLUME I i - 176 GPM, 100 PSI _ -INCREASED RATE TO 211 GPM, 120 PSI 21:30 - 00:00 2.50 CASING ~ P ~ LNR1 RIH ON 4" DP STANDS FROM 831' TO 4538' MD - FILL STRING EVERY 10 STANDS 5/6/2010 00:00 - 03:00 ~ 3.00 CASING P LNR1 RIH FROM 4358' TO 8125' MD, 9 5/8" WINDOW. -FILL PIPE EVERY 10 STANDS 03:00 - 04:00 1.00 CASING P LNR1 CIRCULATE 1.5X DRILLPIPE AND LINER VOLUME i - 212 GPM, 500 PSI i WHILE CIRCULATING HOLD CEMENTING PJSM WITH RIG CREW, SCHLUMBERGER CEMENTING CREW, AND_CH2M HILL TRUCK CREWS 04:00 - 05:00 1.00 CASING P LNR1 RIH FROM 8125' TO 8602' MD ~ PU 10' DRILLPIPE PUP AND 2 JOINTS FROM PIPE SHED ~ MU TD CEMENT HEAD TO STRING WASH DOWN LAST STAND AND T 8678' ~ - 175 GPM, 550 PSI PICKUP 2' FROM TD - FLOAT SHOE AT 8676' MD 05:00 - 05:30 I 0.50 CASING P i LNR1 STAGE UP PUMP TO 6 BPM AND CIRCULATE TO CONDITION HOLE ~ _ - 6 BPM, 870 PSI _ _____ _ Printed 6/7/2010 11:10:25AM North America -ALASKA - BP Page 9 of 17 Operation Summary Report Common Well Name: K-12 DIMS _ _ -. - - - AFE No - Event Type: RE-ENTER- ONSHORE (RON) ~ Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTWS-C (2,259,658.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud DatelTime: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) __ _ _ 05:30 - 07:00 1.50 CEMT P ~ LNR1 CEMENT 7" LINER WITHOUT RECIPROCATION AS I 05:20 START MIXING 13.0 PPG MUD PUSH II 05:36 PUMP 30 BBL 13.0 PPG MUD PUSH II AT 5 BPM, 650 PSI TEST LINES TO 4,500 PSI -GOOD 05:53 START MIXING 15.8 PPG CEMENT 06:10 PUMP 29 BBL 15.8 PPG TAIL CEMENT AWAY AT 5 BPM - 15.8 PPG CLASS G i 06:24 STOP PUMPING CEMENT 06:27 DROP DART 06:30 BEGIN DISPLACEMENT WITH RIG PUMPS DISPLACE WITH 10.4'PPG LSND MUD 06:37 CATCH UP TO CEMENT 6 BPM, 610 PSI 06:43 SLOW PUMP RATE TO 3 BPM AT 740 STROKES. OBSERVE PLUG LATCH ~ SLOW PUMP RATE TO 3 BPM WITH 200 STROKES LEFT 06:49 PLUG BUMP AT 973 STROKES (103 BBL DISPLACED) BUMPED PLUG WITH 1,200 PSI PRESSURE PRESSURE UP TO SET LINER HANGER. SET AT 2,500 PSI RELEASE RUNNING TOOL WITH 4,000 PSI I BLEED OFF PRESSURE AND CHECK FLOATS - FLOATS i HOLDING FULL RETURNS THROUGHOUT JOB CEMENT IN PLACE AT 06:49 I j CEMENT JOB VOLUME: I i i 29 BBLS 15.8 PPG CLASS G TAIL; 140 SACKS j - AT 1.16 CUFT/SK __ __ -- _ - - 07:00 - 07:30 0 50 - CEMT P - LNR1 REMOVE CEMENTING HOSE FROM TD CEMENTING HEAD. RIG UP AND LINE UP TO i ;PUMP DOWN TOP DRIVE 07:30 - 08:30 1.00 CEMT P __ ~ LNR1 SET ZXP LINER TOP PACKER. GOOD SURFACE INDICATION OF PACKER SET. PRESSURE UP TO 1000 PSI. PULL OUT OF I PACK-OFF AND INCREASE CIRCULATONG RATE TO 500 GPM WITH 1500 PSI. CEMENT CONTAMINATED MUD RETURNS ON BOTTOMS UP. PH SPIKE TO 11.7. 08:30 - 09:00 0.50 CEMT P LNR1 LAY DOWN TD CEMENTING HEAD AND LINES. i ~ - LAY DOWN TWO SINGLES AND 10' DRILLPIPE PUP TO PIPE SHED. 09:00 - 10:00 1.00 I CEMT P ~ LNR1 POH TO 7189' AND FLOW CHECK WELL. - NO FLOW PUMP DRY JOB. BLOW DOWN TOP DRIVE _ 10:00 - 12:30 2.50 CEMT P LNR1 POH. STAND 4" DRILL PIPE IN DERRICK. Printed 6/7/2010 11:10:25AM North America -ALASKA - BP Page 10 of 17 Operation Summary Report __ Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTW5-C (2,259,658.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud DatelTime: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.5ft (above Mean Sea Level) Date From - To ~ Hrs Task Code NPT NPT Depth Phase Description of Operations ~ (hr) (ft) --- 12:30 - 13:00 0.50 ~ CEMT P _ LNR1 BREAK AND LAY DOWN RUNNING TOOL. SHEAR PINS ON DOG SUB SHEARED. _ 13:00 - 14:00 1.00 BOPSUR P LNR1 PULL WEAR BUSHING AND INSTALL TEST PLUG. TEST RUN 2-7/8" TEST JOINT. SET 4-1/2" TEST JOINT FOR BOP TEST. 14:00 - 15:30 1.50 BOPSUR P LNR1 CHANGE TOP RAMS FROM 7" FIXED TO 2-7/8" X 5"VARIABLE. i 15:30 - 21:00 5.50 BOPSUR P _ LNR1 ` TEST THE ANNULAR WITH 4-1/2" TEST JT. TO ~ 250 PSI LOW AND 2,500 PSI HIGH FOR 5 MINUTES EACH. -GOOD TEST. TEST THE CHOKE MANIFOLD AND IBOP TO 250 ~ PSI LOW AND 3,500 PSI HIGH FOR 5 MINUTES i EACH. - GOODiTESTS.-' TEST THE LOWER 3-1/2" X 6" VBR AND UPPER 2-7/8" X 5" VBR TO 250 PSI LOW AND 3,500 PSI HIGH`WITH THE 4-1/2" TEST JOINT FOR 5 MINUTES EACH. -GOOD TESTS. - TEST THE BLIND RAMS TO 250 PSI LOW AND 3,500 PSI HIGH FOR 5 MINUTES. I -GOOD TEST. PULL 4-1/2" TEST JOINT AND RUN 2-7/8" TEST JOINT TEST THE ANNULAR WITH 2-7/8" TEST JT. TO 250 PSI LOW AND 2,500 PSI HIGH FOR 5 ~ j MINUTES EACH. -GOOD TEST. TEST THE UPPER 2-7/8" X 5" VBR TO 250 PSI LOW AND 2,500 PSI HIGH WITH THE 2-7/8"TEST JOINT FOR 5 MINUTES EACH. -GOOD TEST. -TESTS WITNESSED BY BP WSLS DUNCAN FERGUSON AND FRANK ROACH AND DOYON TOOLPUSHERS BOB INGRAM AND HARRY GOCHENAUER. -WITNESS OF THE TEST WAIVED BY AOGCC 21:00 - 21:30 , 0.50 BOPSUR P ' LNR1 REP. CHUCK SCHEVE. PULL TEST PLUG. ~ INSTALL WEAR RING. ---- 21:30 - 23:00 - i 1.50 BOPSUR P LNR1 RIG UP AND TEST LINER /LINER TOP PACKER TO i i 3,500 PSI FOR 30 MINUTES - LOST 30 PSI IN FIRST 15 MINUTES. -LOST 10 PSI IN SECOND 15 MINUTES I i -GOOD TEST. RIG DOWN TEST EQUIPMENT AND BLOW DOWN 23:00 - 23:30 0.50 DRILL P LNR1 TOP DRIVE. MOBILIZE 6" BUILD BHA TO RIG FLOOR. 23:30 - 00:00 0.50 DRILL P LNR1 MAKE UP BIT AND MUD MOTOR FOR BHA. Printed 6/7/2010 11:10:25AM North America -ALASKA - BP Page 11 of 17 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 i End Date: 5/15/2010 X3-OOTW5-C (2,259,658.00 USD) _ _ i Project: Prudhoe Bay ~ Site: PB K Pad Rig Name/No.: DOYON 14 ;Spud Date/Time: 12/28/2000 12:0O:OOAM ~ Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-126 @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 5/7/2010 00:00 - 02:00 2.00 DRILL P LNR1 MAKE UP BHA #4 CONSISTING OF: 6" SMITH XR20T INSERT BIT 4-3/4" SPERRY MUD MOTOR (1.83 DEGREE BEND) FLOAT SUB STABILIZER ~ MWD/LWD SUITE ~ NON MAG FLEX COLLARS (3) I i ' 4"HWDP (3 JTS) HYDRAULIC DRILLING JARS 4"HWDP (2 JTS) 02:00 - 02:30 0.50 DRILL P LNR1 SHALLOW TEST MWD EQUIPMENT - 275 GPM, 1,570. PSI -- - 02:30 - 03:00 0.50 DRILL P LNR1 PICK UP REMAINING BHA (HWDP AND JARS) 03:00 - 05:30 2.50 DRILL P; LNR1 RIH' ON STANDS FROM 361' TO 5674' MD -FILL STRING EVERY 2500 FT _ 05:30 - 08:00 2.50 DRILL P LNR1 RIH. PICK UP 90 JOINTS IN SINGLES FROM 5674' ~ TO 851$' PICK UP 1 X 1 FROM PIPE SHED _ 08:00 - 09:30 1.50 ~ DRILL P LNR1 pOH. STAND BACK 30 STANDS. DRILL PIPE ~ MANAGEMENT TO POSITION PICKED UP PIPE ON i TOP OF THE STRING FOR DRILLING. __ 0 39 0 11:00 1.50 DRILL P LNR1 SLIP AND CUT DRILLING LINE 11:00 - 11:30 0.50 DRILL P LNR1 SERVICE RIG, TOP DRIVE AND CROWN - -- 11:30 - 13:30 2.00 DRILL P LNR1 RIH. RUN DRILL PIPE FROM THE DERRICK TO 8535'. WASH DOWN AND TAG 7" LANDING COLLAR AT 8590' _ j 13:30 - 16:30 3.00 DRILL P LNR1 DRILL PLUGS AND LANDING COLLAR. WOB 5K-15K, 280 GPM WITH 1960 PSI RPM 30 AT SURFACE AND 90 AT BIT. DRILL HARD CEMENT TO FLOAT COLLAR AT 8631'. DRILL HARD CEMENT TO 8664' (10' ABOVE FLOAT SHOE) 16:30 - 19:00 2.50 DRILL P _ _ _ LNR1 DISPLACE 10.4 PPG LSND DRILLING MUD WITH 8.5 PPG FLOPRO MUD - ROTATE AND RECIPROCATE WHILE DISPLACING TO NEW SYSTEM - 275 GPM, 1,700 PSI - 30 RPM, TQ 3K _ 19:00 - 20:00 1.00 DRILL P LNR1 DRILL FLOAT SHOE AT 8,674', RATHOLE, AND 20' OF NEW HOLE TO 8,698' MD - 257 GPM, 19,00 PSI OFF, 1,960 PSI ON i ~ - 30 RPM, TQ 3K, WOB 5-10K __ 20:00 - 21:30 1.50 DRILL P LNR1 OBTAIN SLOW PUMP RATES ~ ~ ~ RIG UP UP AND PERFORM FIT ~ i - FIT TO 10.6 PPG EMW, GOOD _ RIG DOWN TEST EQUIPMENT _ 21:30 - 22:00 0.50 ~ DRILL P PROD1 OBTAIN PWD BASELINE Printed 6/7/2010 11:10:25AM l North America -ALASKA - BP Page 12 of 17 Operation Summary Report ____ Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTW5-C (2,259,658.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.Sft (above Mean Sea Level) Date i From - To Hrs Task Code NPT NPT Depth Phase Description of Operations ____ __ (nr) _ (n) 22:00 - 00:00 2.00 DRILL P PROD1 DIRECTIONALLY DRILL FROM 8,698' TO 8,708' MD -PUW 175K, SOW 165K, ROT 170K - 250 GPM, 1,350 PSI ON, 1,250 PSI OFF - 50 RPM, TO 4K ON, 2K OFF - 12-18K WOB ~ AST: 0.76, ART: 0.53, ADT 1.29 5/8/2010 00:00 - 12:00 12.00 DRILL P _ PROD1 DRILL AHEAD FROM 8,708' TO 8,872' MD PUW 175K, SOW 165K, ROT 173K - 285 GPM,,1,550 PSI ON, 1,450 PSI OFF - 30-50 RPM, TO 2.5K ON, 1 K OFF - 12-18K WOB - 13 ROP SLIDING - 22 ROP ROTATNG AST: 6.30, ART: 0.97, ADT 7.29 _ 12:00 - 19:30 7.50 DRILL P __ PROD1 DRILL AHEAD FROM 8,872' TO 8,924' MD PUW 177K, SOW 167K, ROT 173K - 285 GPM, 1,750 PSI ON, 1,550 PSI OFF - O RPM, - 15-25K W06 - 13 FT/HR ROP SLIDING ~ - 0 ROP ROTATNG AST: 3.95, ART: 0, ADT 3.95 - - ROP SLOWED DOWN SIGNIFICANTLY TO 4 FPH IN LAST 2 HOURS AND BHA NOT RESPONDING ~ TO DIRECTIONAL INPUTS. _ 19:30 - 20:30 ~ 1.00 DRILL P ~ PROD1 FLOW CHECK WELL - NO FLOW POOH TO 8,330' MD (INSIDE 7" SHOE) FLOW CHECK WELL - NO FLOW 20:30 - 23:30 3.00 DRILL P _ PROD1 PUMP DRY JOB _ POOH FROM 8,330' TO 361' MD 23:30 - 00:00 0.50 DRILL P PROD1 RACK BACK HWDP, JARS, AND FLEX COLLARS 5/9/2010 100:00 - 02:00 2.00 DRILL P PROD1 DOWNLOAD MWD DATA LAY DOWN MWD TOOLS IN 2 SECTIONS BREAK BIT OFF OF MUD MOTOR CHANGE SLEEVE STABILIZER ON MUD MOTOR FROM 5-15/16" TO 5-11/16" OD ~ BIT GRADE 1-2-BT-A-E-I-JD-PR 02:00 - 03:30 1.50 DRILL P PROD1 PU NEW 6" HUGHES MX18-HDX INSERT TRICONE BIT PU MUD MOTOR WITH 1.83 DEG BEND, MWD TOOLS, AND DOWNLOAD TO MWD ___ 03:30 - 04:00 0.50 DRILL P i PROD1 RIH TO 763' MD AND SHALLOW TEST MWD 04:00 - 08:00 4.0~ -DRILL P ~ PROD1 RIH FROM 763' MD TO 8899', FILL PIPE EVERY i 2500' Printed 6/7/2010 11:10:25AM North America -ALASKA - BP Page 13 of 17 Operation Summary Report Common WeII Name: K-12 DIMS AFE No End Date: 5/15/2010 X3-OOTWS-C (2,259,658.00 USD) Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 - Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: _ ___ Active Datum: K-126 @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations _ 08:00 - 12:00 (hr) 4.00 DRILL P ( (ft) PROD1 WASH DOWN FROM 8,899' TO 8924' DRILL AHEAD FROM 8,924' TO 9,014" MD -PUW 190K, SOW 170K, ROT 174K ~ I - 293 GPM, 1,840 PSI ON, 1,650 PSI OFF I I I . 10 RPM, TO 2K ON, 1K OFF - 10K W06 - MW 8.6 PPG IN, 8.6 PPG OUT, CALC ECD 8.88, i i ACT ECD 9.03 PPG AST: 1.99, ART: 0.32, ADT 2.31 _ 12:00 - 00:00 12.00 DRILL P PROD1 DRILL AHEAD FROM 9,014' TO 9,270' MD -PUW 180K, SOW 165K, ROT 175K - 295 GPM, 1,1820 PSI ON, :1,650 PSI OFF - 10 RPM, TO 2K ON, 1 K-OFF - 15-25K WOB - MW 8.6 PPG IN, 8.6 PPG OUT, CALC ECD 8.95 I PPG., ACT ECD 9.04 PPG AST: 6.69, ART: 1.96, ADT 8.65 , ADT FOR LAST 24 HRS: 10.96 - -- -- 5/10/2010 00:00 - 09:30 ~ 9.50 _ DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 9,270' MD TO 9,392' MD -PUW 183K, SOW 163K, ROT 175K - 299 GPM, 1,860 PSI ON, 1,750 PSI OFF - - 10 RPM, TO 3K ON, 2K OFF - 15-25K WOB - MW 8.6 PPG IN, 8.6 PPG OUT, CALC ECD 8.94 PPG, ACT ECD 9.09 PPG ~ ROP DROPPING OFF. DIFFICULTY APPLYING WEIGHT TO BIT. AST: 5.86, ART: 0.00, ADT 5.86 09:30 - 11:00 1.50 DRILL P PROD1 BACK REAM TO 7" SHOE AT 8676'. PULL AT 10 MINUTES PER STAND WITH 10 RPM AND 300GPM, 1615 PSI. CLEAN UP WELL AND SMOOTH OUT WELL BORE 11:00 - 12:00 I 1.00 DRILL P I PROD1 AFTER LONG SLIDING SECTION. ___ CIRCULATE ONE BOTTOMS UP. 300 GPM, 1670 PSI. ROTATE AND RECIPROCATE ~ SLOWLY. SOME CHANGE IN OUTINGS VOLUME ON BOTTOMS UP. _ 12:00 - 12:30 0.50 DRILL P PROD1 SERVICE RIG. TOP DRIVE CROWN AND DRAWWORKS. __ 12:30 - 13:00 0.50 DRILL P PROD1 RIH FROM 7876' TO 9,392' MD Printed 6/7/2010 11:10:25AM ~~ North America -ALASKA - BP P~~~e ~~ "I ~ Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTWS-C (2,259,658.00 USD) ~ - - Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-126 @57.Sft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) _ 13:00 - 00:00 11.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 9,392' MD TO 9,493' MD -PUW 177K, SOW 165K, ROT 170K - 295 GPM, 1,900 PSI ON, 1,750 PSI OFF - 10 RPM, TQ 3K ON, 2K OFF ~ - 25-30K WOB - MW 8.6 PPG IN, 8.6 PPG OUT, CALC ECD 8.95 PPG, ACT ECD 9.18 PPG ROP DROPPING OFF. DIFFICULTY APPLYING WEIGHT TO BIT. AST: 8.12, ART: 0.00, ADT 8.12 I ADT FOR. LAST 24 HRS: 13.98 5/11/2010 00:00 - 01:00 ~ 1.00 DRILL P _ _ PROD1 DIRECTIONALLY GRILL FROM 9,493' TO 9,505' j MD -PUW 180K, SOW 165K, ROT 170K ~ - 300 GPM, 2,000 PSI ON, 1,780 PSI OFF ~ ; WOB 5-30K I TO 8K ON, 2K OFF 01:00 - 03:00 2.00 .DRILL P PROD1 { STAND BACK ONE STAND OF DRILLPIPE CIRCULATE 1.5X BOTTOMS-UP -ROTATE AND RECIPROCATE FULL STAND 'i - 300 GPM, 1,790 PSI - 10 RPM, 2K TO FLOW CHECK WELL i _ - NO FLOW _ __ 03:00 - 03:30 ~ 0.50 DRILL P PROD1 BLOW DOWN TOP DRIVE POH FROM 9,505' TO 8,585' MD ~ i FLOW CHECK WELL ~ - NO FLOW 03:30 - 04:00 0.50 DRILL P i PROD1 PUMP DRY JOB SIMULTANEOUS OPERATION: WHILE PUMPING DRY JOB, MOBILIZE BHA COMPONENTS FOR BHA #6 TO RIG FLOOR - 4-3/4 NON-MAG TM HOC 04:00 - 07:00 3.00 DRILL P PROD1 POOH FROM 8,585' TO TOP OF BHA. ~ MUD WEIGHT IN AND OUT WHILE POH 8.6 PPG - - 07:00 - 08:30 1.50 - DRILL - ~ P _ ~ PROD1 CHANGE BHA. LAY DOWN TM, 1.83 DEG BEND ~ I _ MOTOR AND BIT _ _ _ 08:30 - 11:30 _ i 3.00 DRILL _ P __ PROD1 PICK UP TM, NUKES, MOTOR WITH 1.5 DEG BEND ~ AND NEW HYCALOG 6" PDC BIT. i DOWN LOAD MWD. PULSE TEST. LOAD NUKE SOURCES. 11:30 - 16:00 4.50 DRILL P PROD1 RIH FROM 396' TO 8,650' MD 16:00 - 17:30 1.50 DRILL P PROD1 SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE WHILE PERFORMING SLIP AND CUT 17:30 19:00 1.50 ~ DRILL P PROD1 CHANGE OUT SAVER SUB IN TOP DRIVE 19:00 19:30 - __ 0.50 DRILL P PROD1 RIH FROM 8,650 TO 9,410' MD Printed 6/7/2010 11:10:25AM North America -ALASKA - BP Page 15 of 17 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTWS-C (2,259,658.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT ~ NPT Depth Phase Description of Operations 19:30 - 21:00 1.50 DRILL P PROD1 WASH DOWN LAST STAND TO 9,505' MD AT DRILLING RATE - STARTED PACKING OFF AT 9,445' MD PU TO 9,430' MD AND WORK PUMPS UP TO 290 GPM, 600-1,700 PSI - ROT 20 RPM, 2-5K TO CIRCAND WORK PIPE 15-20 MIN TO CLEAN HOLE ! TAG UPAT 9,470' MD ! WORK PIPE TO TD AT 9,505' MD 21:00 - 00:00 3.00 DRILL P PROD1 MAD PASS FROM 9,505' - 258.GPM, 1,460 PSI - 20 RPM, TO`3K -PULLING AT 130 FT/HR 5/12/2010 00:00 - 03:00 3.00 DRILL P - _ "PROD1 CONTINUE TO MAD PASS FROM 9,505' UP TO 8,906' MD - 250 GPM, 1,445 PSI - 30 RPM, TO 3K -PULLING AT 130 FT/HR 03:00 - 03:30 0.50 DRILL P PROD1 - RIH FROM 8,906' TO 9,410' MD - 03:30 - 04:00 0.50 DRILL P PROD1 WASH DOWN LAST STAND TO 9,505' MD -- - ~ - 04:00 - 12:00 8.00 - DRILL i P -- PROD1 OBTAIN SLOW PUMP RATES DIRECTIONALLY DRILL AHEAD FROM 9,505' TO 9.694' MD -PUW 178K, SOW 168K, ROT 170K ' - 300 GPM, 2,300 PSI ON, 1,800 PSI OFF - 20 RPM, TO 3.SK ON, 2.5K OFF - 10K WOB - MW 8.7 PPG IN, 8.7 PPG OUT, CALL ECD 9.00 PPG, ACT ECD 9.25 PPG AST: 2.96, ART: 0.32, ADT 3.28 _ 12:00 - 00:00 12.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 9,694' TO 10.262' MD -PUW 175K, SOW 150K, ROT 169K - 300 GPM, 2,300 PSI ON, 1,900 PSI OFF - 50 RPM, TO 5K ON, 2.5K OFF - 10K WOB - MW 8.7 PPG IN, 8.7 PPG OUT, CALL ECD 9.17 PPG, ACT ECD 9.35 PPG AST: 4.19, ART: 1.94, ADT 6.13 OBTAIN SLOW PUMP RATES ADT FOR LAST 24 HRS: 9.41 Printed 6/7/2010 11:10:25AM [~ l 1 North America -ALASKA - BP Page 16 of 17 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 ~ End Date: 5/15/2010 X3-OOTWS-C (2,259,658.00 USD) ~ _ Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-126 @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations 5/13/2010 ~ 00:00 - 12:00 12.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 10,262' TO j 10,950' MD -PUW 175K, SOW 152K, ROT 160K ~ - 300 GPM, 2,110 PSI ON, 1,950 PSI OFF - 50 RPM, TO 3.5K ON, 2.5K OFF ~ - 5K WOB I = MW 8.8 PPG IN, 8.8 PPG OUT, CALC ECD 9.27 i PPG, ACT ECD 9.44 PPG AST: 1:98, ART: 4.05, ADT 6.03 OBTAIN SLOW PUMP RATES _ 12:00 - 19:00 7.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 10,950' TO 11,305' MD -PUW 175K, SOW 148K,-ROT 160K - 305 GPM, 2,500. PSI ON, 2,030 PSI OFF - 80 RPM, TO'5K ON, 3K OFF - 1AK W06 - MW 8:8 PPG IN, 8.8 PPG OUT, CALC ECD 9.36 PPG, ACT ECD 9.58 PPG AST: 1.00, ART: 1.23, ADT 2.23 OBTAIN SLOW PUMP RATES ADT FOR LAST 24 HRS: 8.26 19:00 - 23:0 4.00 DRILL P' PROD1 CIRCULATE BOTTOMS UP 3 TIMES ~ -ROTATE AND RECIPROCATE FULL STAND - 80 RPM, TO 3.5K I ~ - 303 GPM, 1,990 PSI _ __ 23:00 - 00:0 1.00 DRILL P PROD1 FLOW CHECK WELL ~ - NO FLOW BACKREAM OUT OF HOLE FROM 11,305' TO 10,734' MD - 300 GPM, 1,950 PSI - 70 RPM, TO 3K 5/14/2010 00:00 - 07:3 7.50 DRILL P PROD1 BACKREAM OUT OF HOLE FROM 10,734' TO 9,885' MD ~ - 300 GPM, 1,950 PSI I j - 70 RPM, TO 3K STOPPED ROTATION WHEN BHA APPROACHED HIGH DOGLEG AREA AT 9,885' MD BEGAN PACKING OFF AT 9,790' MD -ROTATED AT 20 RPM WHILE BACKREAMING I ~ -ABLE TO WORK THROUGH TIGHT SPOT CONTINUE BACKREAMING FROM 9,790' TO 8,652' MD - 290 GPM, 1,850 - 2,100 PSI i - 20 RPM, TO 3-5K ~ ~ -PULLING AT AN AVERAGE OF 30+ MIN/STAND -HOLE CONTINUALLY TRYING TO PACK OFF - Printed 6/7/2010 11:10:25AM ,~ North America -ALASKA - BP Page 17 of 17 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 4/29/2010 End Date: 5/15/2010 X3-OOTW5-C (2,259,658.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud DatefTime: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations 07:30 - 11:00 3.50 DRILL P PROD1 CIRCULATE BOTTOMS UP 3X -300 GPM, 1,650 PSI - 40 RPM, 1 K TO _ 11:00 - 12:00 1.00 DRILL i P PROD1 RIH FROM 8,652' MD TO 10,070' MD, SLACK WT 160, AVERAGE DN DRAG 30K ~ ~ -MULTIPLE HIGH DRAG SPOTS THROUGH 1NTERVAL FROM 9370' TO 9,550', DOWN DRAG -~ ! - 12:00 - 12:30 ~ 0.50 DRILL P PROD1 BETWEEN 25 - 65K INTERMITTENTLY CIRCULATE AT 300 GPM, 2,000 PSI ~ 12:30 - 13:00 0.50 DRILL P PROD1 - 30 RPM, 3-4K TO RIH TO TD'FROM 10,070' TO 11,305' MD, SLACK ~ OFF WT'160K, 10,500' WITH 65K DN DRAG, 10,833' WITH 60K DN DRAG, OVERALL DN DRAG THROUGH INTERVAL RANGED FROM 15 - 30K _ 13 00 - 15:00 2.00 DRILL P' _ PROD1 CIRCULATE :HOLE CLEAN WITH 1.5X BTMS UP - 320 GPM, 2,200 PSI - 80 RPM, 4-5K TO _ 15:00 - 17:30 2.50 DRILL P PROD1 FLOW CHECK WELL - NO FLOW ° -POOH TO SHOE AT 8,674' MD ON ELEVATORS WITH OVERPUILS OF 5 - 20K THROUGH OUT MOST OF INTERVAL, OVERPULLS OF 30 - 40K I AT 11,175', 10,900', 10,980', 9,490' 17:30 - 18:00 0.50 DRILL P PROD1 FLOW CHECK WELL ~ I - NO FLOW PUMP DRY JOB ~ 18:00 - 23:30 5.50 DRILL P- PROD1 DROP 2.25" RABBIT DOWN DRILLPIPE 23:30 - 00:00 ~- i 0.50 DRILL P _ PROD1 POOH FROM 8,674' TO 397' __ _ RIH WITH 4 STANDS NOT YET DRIFTED FOR DRILLPIPE DART DROP 2.25" RABBIT 5/15/2010 00:00 - 01:00 1.00 DRILL P PROD1 POOH 4 STANDS OF DRILLPIPE TO 397' MD -RECOVER RABBIT _ 01:00 - 04:00 3.00 DRILL P PROD1 LAY DOWN BHA #6 -HOLD PJSM ON RECOVERING RADIOACTICE SOURCES FROM MWD TOOLS AFTER LD HWDP N D O 04:00 - 04:30 0.50 DRILL P PROD1 CLEAR RLG FLOOR AN AND CLE Printed 6/7/2010 11:10:25AM i North America -ALASKA - BP Page 1 of 7 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/15/2010 End Date: X3-OOTWS-C (1,495,367.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-126 @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT ~ NPT Depth Phase Description of Operations (hr) (ft) 5/15/2010 _ 04:30 - 06:00 1.50 CASING P RUNPRD MOBILIZE CASING RUNNING EOIPMENT TO RIG FLOOR CHECK SEAL RINGS, CONFIRM COUNT, AND CENTRALIZER PLACEMENT ~ -WHILE MOBILIZING TOOLS, PERFORM WEEKLY I DERRICK INSPECTION _ 06:00 - 10~. 0 4.50 CASING P RUNPRD HOLD PJSM RUN 4-1/2", 12.6#, L-80, IBT-M LINER TO 2,767 MD 72 JOINTS 10:30 - 11:30 1.00 CASING I P ~ RUNPRD CHANGE OUT HANDLING TOOLS PU AND MU FLEXLOCK HANGER AND ZXPN PACKER ASSEMBLY - - 11:30 - 12:00 ~ r 0.50 -- CASING P RUNPRD BREAK CIRCULATION AND CIRC 1.5X LINER VOLUME - 4 BPM; 110 PS4' -AFTER CIRC; PUW 85K, SOW 85K _ 1 12:00 - 17:30 5.50 CASING P RUNPRD RIH ON 4" DRILLPIPE FROM 2,767 TO LINER SHOE AT 8,674' MD -FILL PIPE EVERY 10 STANDS 17:30 - 19:00 1.50 CASING P RUNPRD CIRCULATE 1.5X LINER AND DRILLPIPE VOLUME - 6 BPM, 550 PSI -AFTER CIRC: PUW 157K, SOW 150K 19:00 - 21:30 2.50 CASING P RUNPRD RIH TO TD ON DRILLPIPE i . - -FILL EVERY STAND ---- - 21:30 - 22:00 0.50 - CASING P RUNPRD MAKE UP PUP JTS, SINGLE JT, ROTATING CEMENT HEAD, AND CEMENT HOSE TAG BOTTOM AT ~ ~ -~^F' GPAr O IT 2' - FLOAT SHOE BOTTOM AT 11,303' MD 22:00 - 00:00 2.00 CONDHL P ~ RUNPRD BREAK CIRCULATION AT 2BPM, 630 PSI STAGE UP PUMPS TO 5.5 BPM, 1,300 PSI -PUW 175K, SOW 130K - HIGH DRAG OBSERVED (50-70K SLACKOFF, ~ 25-50 K OVERPULLS) -DIFFICULTY GETTING STRING TO BOTTOM AT ! 5.5 BPM. DROP RATE TO 4.0 BPM TO GET BACK - - ~ - - -- - ~ TO BOTTOM. ~ 5/16/2010 00:00 - 03:00 3.00 CONDHL P RUNPRD CONTINUE TO CIRCULATE AND CONDITION HOLE - 5 BPM, 1,100 PSI I -HOLD PJSM ON CEMENTING LINER WHILE _~ CIRCULATING FINAL PARAMETERS: PUW 185K, SOW 155K Printed 6/7/2010 11:10:59AM North America -ALASKA - BP Page 2 of 7 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/15/2010 End Date: X3-OOTW5-C (1,495,367.00 USD) ~ _ _ Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-126 @57.Sft (above Mean Sea Level) Date From - To Hrs Task Code NPT i NPT Depth Phase Description of Operations (hr) ~ (ft) --- 03:00 - 04:30 1.50 t _ CEMT __ P _ RUNPRD ~ CEMENT 4-1/2" LINER WITH RECIPROCATION AS i FOLLOWS: ~ 02:00 START BATCH MIXING 15.8 PPG G ~ CEMENT 0230 START BATCH MIXING 11.0 PPG MUD i PUSH II 02:49 STOP CIRCULATING. LINE UP SLB CEMENTERS TO WELL 02:52 PUMP 25 BBL 11.0 PPG MUD PUSH II AT 3 ~ BPM, 560 PSI I TEST LINES TO 4,500 PSI -GOOD 03:03 PUMP 62 BBL 15.8 PPG TAIL CEMENT AWAY AT 5 BPM - 15.8 PPG CLASS G WITH GASBLOK i - 56PM, 550 PSI TREATING PRESSURE 0331 STOP PUMPING CEMENT ~ ' 03:39 DROP DART 03:39 BEGIN DISPLACEMENT WITH RIG PUMPS DISPLACE WITH 8.9 PPG FLO PRO MUD i -FIRST 45 BBLS FLO PRO PERF PLUG -PUMP 10 BPM TO CATCH UP TO CEMENT 03:43 CATCH UP TO CEMENT. DROP RATE TO 5 BPM, 100 PSI 03:46 SLOW PUMP RATE TO 3 BPM AT 820 STROKES. DID NOT OBSERVE PLUG LATCH - MAINTAIN PUMP RATE AT 3 BPM 04:05 PLUG BUMP AT 1,221 STROKES (123 BBL j DISPLACED); CALCULATED DISPLACEMENT WAS 131 BBLS BUMPED PLUG WITH 1,500 PSI PRESSURE INCREASE PRESSURE TO 3,000 PSI, SLACK OFF I ~ TO 110K AND SET LINER HANGER INCREASED SSURE UP TO 4,000 PSI, STACKED 40K DN, RUNNING TOOL DID NOT RELEASE FROM HANGER -BLEED OFF AND CHECK FLOATS ~ -FLOATS HOLDING PRESSURE UP AGAIN TO 4,000 PSI, RUNNING TOOL DID NOT RELEASE FROM HANGER LINE UP SLB PUMPS TO WELL PRESSURE UP TO 4 200 PSI. RUNNING TOOL RELEASED ! ~ FULL RETURNS THROUGHOUT JOB WHILE RECIPROCATING LINER WITH 15' STROKES ~ CEMENT IN PLACE AT 04:05 -SLB FIELD BLEND TEST SHOWS THICKENING TIME 4HRS 32MINUTES; -UCA TEST SHOWS COMPRESSIVE STRENGTH AFTER 11 HRS AT 1000PSI ~ CEMENT JOB VOLUME: 62 BBLS 15.8 PPG CLASS G TAIL; 298 SACKS Printed 6/7/2010 11:10:59AM C J North America -ALASKA - BP Page 3 of 7 Operation Summary Report Common Well Name: K-12 DIMS AFE No Event Type: COM-ONSHORE (CON) Start Date: 5/15/2010 End Date: X3-OOTW5-C (1,495,367.00 USD) Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-128 @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code ~ NPT NPT Depth Phase Description of Operations ~~ (ft) ---- ----- ---- i - - AT 1.17 CUFT/SK 04:30 - 05:00 i 0 CASING P __ RUNPRD PICK UP -T AND EXPOSE DOG SUB SET LINER TOP PACKER WITH 40K DOWN j I ( WEIGHT ~ PICK UP AND ROTATE AT 15 RPM AND SLACK ~ OFF 40K TO REPEAT PACKER SET 2X .RIG DOWN CEMENT LINE FROM ROTATING CEMENT HEAD AND INSTALL BULL PLUG I I PRESSURE UP TO 1,000 PSI PICK UP -40'ABOVE LINER AND WATCHING I i ( PRESSURE DROP TO INDICATE RUNNING TOOL ~ FREE OF LINER 05:00 - 06:00 1.00 ~ CASING P RUNPRD CIRCULATE EXCESS CEMENT OUT OF WELL I - 14.5 BPM, 1,950 PSI - MUD PUSH SEEN AT SURFACE AT 424 BBLS INTO DISPLACEMENT; PH INCREASE NOTED -CEMENT CONTAMINATED MUD SEEN AT SURFACE 465 BBLS INTO DISPLACEMENT; PH 06:00 - 07:00 1.00 CASING. __ P RUNPRD _ INCREASE NOTED _ DISPLACE WELL TO SEAWATER ABOVE LINER - 12 BPM, 2,050 PSI _ 07:00 - 08:30 1.50 CASING' f RUNPRD FLOW CHECK WELL - NO FLOW i RIG DOWN CEMENT HEAD I LAY DOWN SINGLE AND 2 PUP JOINTS j BLOW DOWN TOP DRIVE 08:30 - 12:00 3.50 CASING P RUNPRD POOH, LD 90 JTS 4" DRILLPIPE NOT NEEDED FOR I UPCOMING DPC PERFORATING RUN _ 12:00 - 14:00 2.00 CASING P __ RUNPRD SLIP AND CUT DRILLING LINE SERVICE TOP DRIVEAND CROWN ADJUST DRAWWORKS BRAKES 14:00 - 16:30 2.50 CASING P RUNPRD POOH TO SURFACE - RACK BACK DRILLPIPE 16:30 - 17:00 0.50 CASING P RUNPRD MAKE SERVICE BREAKS AND LAY DOWN LINER RUNNING TOOL ~ -DOGS WERE_S_HEARED ON RUNNING TOOL _ 17:00 - 18:00 1.00 CASING _ P _ RUNPRD RU TEST EQUIPMENT I TEST WELL 4-1/2" LINER AND LINER TOP PACKER) TO 3,500 PSI FOR 30 MIN ~ -GOOD TEST __ 18:00 - 19:00 1.00 PERFOB I P OTHCMP MOBILIZE TOOLS FOR DPC PERF RUN TO RIG FLOOR - PERF GUNS AND 2-7/8" FOX RUNNING EQUIPMENT 19:00 - 21:00 2.00 PERFOB N RREP OTHCMP TROUBLESHOOT AND REPAIR PIPE SKATE -SKATE WOULD NOT RESPOND TO CONTROLS MOVING IT UP AND DOWN 21:00 - 23:00 2.00 PERFOB P OTHCMP . MU PERF GUN STRING - 1,312' TOTAL GUN LENGTH 23:00 - 23:30 0.50 PERFOB P ___ OTHCMP RIG UP POWER TONGS FOR 2-7/8" 7.8# FOX WORKSTRING I CHANGE ELEVATORS TO 2-7/8" _ Printed 6/7/2010 11:10:59AM ~~ North America -ALASKA - BP Page 4 of 7 Operation Summary Report Common Well Name: K-12_DIMS ~ AFE No End Date: ~X3-OOTWS-C (1,495,367.00 USD) Event Type: COM- ONSHORE (CON) ;Start Date: 5/15/2010 - ____ i _ Project: Prudhoe Bay i Site: PB K Pad Rig Name/No.: DOYON 14 ,Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) _ 23:30 - 00:00 0.50 PERFOB P OTHCMP RIH ON 2-7/8" 7.8# FOX WORKSTRING FROM - 1,312' TO 1,687' MD 5/17/2010 00:00 - 01:30 I 1.50 PERFOB P OTHCMP CONTINUE TO RIH ON 2-7/8" WORKSTRING FROM 1,687' TO 2,800' MD RIG DOWN TUBING HANDLING EQUIPMENT 01:30 07:00 5.50 ~ PERFOB P OTHCMP ... .RIH ON DRILLPIPE FROM 2,800' TO 11,221' MD OBTAIN PICK-UP AND SLACK-OFF WEIGHTS ONE STAND ABOVE LANDING COLLAR - PUW 175K, SOW 156K STRAP LAST STAND IN AND TAG LANDING COLLAR AT 11,221' MD 07:00 - 07:30 0.50 PERFOB P OTHCMP HOLD PJSM WITH RIG CREW AND SLB PERFORATORS TAG LANDING COLLAR AGAIN AND SPACE OUT ~ PERFGUNS 07:30 - 08:30 ~ 1.00 ~ PERFOB P OTHCMP LINE UP TO PUMP DOWN BOTH DRILLPIPE AND ~ i ANNULUS i -SCREW INTO TOP DRIVE AND CIRCULATE j j UNTIL RETURNS AT SURFACE ~ :- LINE UP TO PUMP DOWN ANNULUS AND ~ REVERSE CIRCULATE 12 BBLS TO FLUID PACK FLOWPATH - 1.6 BPM, 220 PSI 08:30 - 09:00 0.50 PERFOB P OTHCMP PERFORM TWO PRESSURE UP AND BLEED OFF CYCLES FOR PRACTICE. BEGIN FIRING SEQUENCE AT 08:40. FINISH SEQUENCE AT 08:58. WAIT ON FIRING HEAD DELAY. __ 09:00 - 10:30 1.50 P RFE OB P OTHCMP PERF GUNS FIRED AT 09:07 10 MINUTE DELAY i ~ ON-TIME .INITIAL LOSSES OBSERVED, BUT STABILIZED. - 3 BBl LOSS BEFORE STABILIZING POOH 16 STANDS FROM 11,190' TO 9,767' MD -PERF GUNS ABOVE TOP PERF _ 10:30 - 12:00 1.50 PERFOB P OTHCMP CIRCULATE BOTTOMS-UP - 10 BPM, 2,490 PSI -ZERO LOSSES TO FORMATION WHILE CIRCULATING __ 12:00 - 12:30 0.50 PERFOB P OTHCMP FLOW CHECK WELL ~ - NO FLOW _ _ _ 12:30 - 21:00 __ 8.50 __ PERFOB P OTHCMP POOH, LAYING DOWN DRILLPIPE FROM 9,767' TO 2,800' MD RIH WITH REMAINING 16 STANDS POOH, LAYING DOWN REMAINING DRILLPIPE TO ~ 2,800' MD 21:00 - 23:00 2.00 PERFOB P OTHCMP POOH, LAYING DOWN 2-7/8" FOX TUBING FROM 2,800' TO 1,312' MD 23:00 - 23:3 0 0 50 ~ PERFOB P OTHCMP RIG UP EQUIPMENT TO LAY DOWN PERF GUNS 23:30 - 00:00 0.50 PERFOB P OTHCMP LAY DOWN FIRING HEAD 5/18/2010 00:00 - 05:00 5.00 PERFOB P OTHCMP LAY DOWN PERF GUNS FROM 1,312' MD TO ~ i SURFACE -ALL SHOTS FIRED - - ~- _ Printed 6/7/2010 11:10:59AM a t North America -ALASKA - BP Page 5 of 7 Operation Summary Report __ Common Well Name: K-12 DIMS AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/15/2010 End Date: X3-OOTW5-C (1,495,367.00 USD) _ _ I _ Project: Prudhoe Bay Site KBP Pad Rig Name/No.: DOYON 14 ~ Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.Sft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hrl I = (ft) _ 05:00 - 06:00 1.00 - PERFOB _ P OTHCMP RIG DOWN PERF GUN AND TUBING HANDLING EQUIPMENT. CLEAN AND CLEAR RIG FLOOR WHILE CLEARING RIG FLOOR, ORGANIZE COMPLETION JEWELERY IN PIPE SHED FOR UPCOMING OPERATION 06:00 - 06:30 0.50 RUNCMM P _ RUNCMP PULL WEAR BUSHING 06:3 07:00 0.50 RUNCOM P RUNCMP MU HANGER AND LANDING JOINT MAKE DUMMY RUN WITH HANGER ~ LAY DOWN HANGER ANO LANDING JOINT 07:00 - 09:00 2.00 RUNCOM P ' RUNCMP RU TO RUN 4-1/2" VAM TOP COMPLETION CHANGE OUT BAILS 8 ELEVATORS RIG UP STABBING'BOARD TORQUE TURN EQUIPMENT - -- - _ 09:00 - 09:30 0.50 RUNCMM P RUNCMP PRE-JOB SAFETY MEETING ON RUNNING TUBING 09:30 - 23:00 13.50 RUNCMM P RUNCMP RUN 4-1/2".12.6#, 3CR-85, VAM TOP TUBING FROM'SURFACE TO 8,450' MD ' -REPLACED GAULED THREADS ON 3 JOINTS AND 1 COLLAR WHILE RUNNING - NO BOBBLES ON SOW SEEN AS WLEG OR -- - - - 23:00 - 23:15 0.25 ( RUNCMM P RUNCMP PACKER ENTERED 7" LINER _ REMOVE AIR SLIPS & STRIPPING RUBBER - - 23:15 - 00:00 ; 0.75 +-- RUNCMM P - RUNCMP RUN IN HOLE TO TAG ' FINAL PUW - 145K, SOW - 140 - NO INDICATION SEEN OF ENTERING TOP OF TIE-BACK RECEPTICLE NO-GO ON BOTTOM OF TIE-BACK RECEPTICLE AT8513'MD ~ I I LAY DOWN 3 JOINTS SPACE OUT WITH A 2' PUP JOINT MAKE UP LAST FULL JOINT, TUBING HANGER, AND LANDING JOINT 5/19/2010 ~ 00:00 - 01:00 1.00 RUNCOM P ( RUNCMP MAKE UP TUBING HANGER j ~ ~ '. LAND TUBING HANGER CAMERON WELLHEAD HAND ENGAGE LOCK ~ DOWN SCREWS 01:00 - 04:30 3.50 RUNCMM P RUNCMP REVERSE CIRCULATE DOWN IA - 3 BPM, 230 PSI - 129 BBLS OF CLEAN SEAWATER, 268 BBLS CORROSION INHIBITED SEAWATER, 163 BBLS CLEAN SEAWATER -__ - -- 04:30 - 05:00 i 0.50 RUNCOM P RUNCMP PRE-JOB SAFETY MEETING ON SETTING ~ ~ _ ~_ PACKER, TESTING, AND SHEARING VALVE Printed 6/7/2010 11:10:59AM a t North America -ALASKA - BP Page 6 of 7 Operation Summary Report Common Well Name: K-12 DIMS AFE No End Date: X3-OOTW5-C (1,495,367.00 USD) Event Type: COM-ONSHORE (CON) Start Date: 5/15/2010 - Project: Prudhoe Bay Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) ~ (ft) 05:00 - 07:00 2.00 RUNCMM P RUNCMP DROP BALL & ROD TO RHC PLUG AT 8,495' MD i -BALL OD = 1.875" PRESSURE UPON TUBING TO 3,500 PSI TO SET PACKER I HOLD FOR 30 MINUTES TO TEST TUBING -GOOD TEST BLEED OFF TUBING PRESSURE TO 1,500 PSI ' PRESSURE UP IA TO 3 500 PSI AND TEST FOR 30 MfN -GOOD TEST BLEED IA THEN TUBING PRESSURES TO 0 PSI i PRESSURE UPON OA TO SHEAR DCK-1 VALVE -SHEARED AT 2,600 PSI I PUMP 5 BBLS EACH WAY TO CONFIRM SHEAR j - 3 BPM, 500 PSI (DOWN IA) - 3 BPM; 140 PSI (DOWN TUBING) -GETTING RETURNS BOTH WAYS _ 07:00 - 07:30 0.50 WHSUR P RUNCMP DRY ROD IN TWC VALVE WITH T-BAR 07:30 - 08:00 0.50 WHSUR P RUNCMP' T TTW I FROM BELOW TO 1,000 PSI, 10 MIN -GOOD TEST FROM ABOVE TO 3,500 PSI, 10 MIN j _ -GOOD TEST __ _ ___ 08:00 - 08:30 0.50 _ RUNCOM P _ _ RUNCMP RIG DOWN TEST EQUIPMENT AND BLOW DOWN I LINES _ _. 08:30 - 08:45 i 0.25 WHSUR.. P RUNCMP PRE-JOB SAFETY MEETING ON NIPPLING DOWN 08:45 - 11:00 2.25 ~ WHSUR ' P RUNCMP NIPPLE DOWN -TURNBUCKLES ~ -RISER - FLOW LINE -BOPE -ADAPTER FLANGE _ 11:00 - 13:30 2.50 j WHSUR P RUNCMP NIPPLE UP ADAPTER AND TREE _ (13:30 - 14:30 14:30 - 16:00 1.00 i 1.50 WHSUR I WHSUR ~ P ~ P I _ ~ RUNCMP ~NCMP RIG UP & TEST TREE & ADAPTER TO 5,000 PSI FOR 5 MIN -GOOD TEST RIG UP DSM TEST LUBRICATOR PULL TWC ~ RIG DOWN DSM _ _ _ _ 16:00 - 18:00 _ 2.00 WHSUR P RUNCMP RIG UP LITTLE RED TEST LINES TO 3,500 PSI PUMP 145 BBLS 80° DIESEL DOWN IA TAKING RETURNS UP TUBING - 2.4 BPM, 450 PSI -FREEZE PROTECT DEPTH = 2,130' MD _ 18:00 - 19:30 1.50 WHSUR i P i _ RUNCMP ~ ALLOW DIESEL TO U-TUBE INTO TUBING 19:30 - 20:30 -1.00 I WHSUR P ~ ~ RUNCMP DRY ROD IN BPV WITH T-BAR I ~ ~ FROM BELOW TO 2,000 PSI, 10 MIN -GOOD TEST 20:30 - 21:00 0.50 WHSUR P __ RUNCMP _ RIG DOWN LITTLE RED AND CLEAR HOSES ~ FROM CELLAR Printed 6/7/2010 11:10:59AM North America -ALASKA - BP Page 7 of ~ Operation Summary R eport Common Well Name: K-12 DIMS __ AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/15/2010 End Date: X3-OOTW5-C (1,495,367.00 USD) _ Project: Prudhoe Bay _ _ ~ ~ Site: PB K Pad Rig Name/No.: DOYON 14 Spud Date/Time: 12/28/2000 12:0O:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum: K-12B @57.5ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:00 - 22:00 1.00 RIGD P RUNCMP SECURE TREE i - 0 PSI ON OA AND IA VALVES 22:00 - 00:00 2.00 RIGD P ~ _ RUNCMP RD RIGFLOOR, CHOKE LINE, SERVICES LINES i RIG RELEASE 24:00 HRS ON 05/19/2010 Printed 6/7/2010 11:10:59AM North America Prudhoe Bay PB K Pad K-12 DIMS K-12B Design: K-12B - ALAS KA - B P Survey Report -Geographic 18 May, 2010 • Survey Report -Geographic Company: North America -ALASKA - BP Local Co-ordinate Reference: Well K-12_DIMS Project: Prudhoe Bay TVD Reference: K-126 ~ 57.46ft (Doyon 14) Site: PB K Pad MD Reference: K-12B @ 57.46ft (Doyon 14) Wei(: ' K-12 DIMS North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-126 Database: EDM .16 - Anc Prod - WH24P Project Prudhoe Bay, GPB, PRUDHOE BAY Map System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927 (NADCON CONUS) _ Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor ' Site PB K Pad, TR-11-14 Site Position: Northing: 5,973,161.33ft Latitude: 70° 19' 57.435 N From: Map Easting: 670,342.10ft Longitude: 148° 37' 5.245 W Position Uncertainty: 0.00 ft Slot Radius: O.000in Grid Convergence: 1.30 ° ~ Well K-12 DIMS API No 5002921759 __ Well Position +N/-S 0.00 ft Northing: 5,975,524.01 ft Latitude: 70° 20' 20.437 N j +E/-W 0.00 ft Easting: 671,371.98ft Longitude: 148° 36' 33.602 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 23.76ft ~ Wellbore K-128 API No 500292175902 ~ -~ i Magnetics ' Model Name Sample Date Declination Dip Angle.. Field Strength BGGM2009 12/4/2009 22.46 80.97 57,683 I BGGM2009 5/1/2010 L 22.26 80.97 57,695 - __- -- Design K-126 ~ Audit Notes: Version: Phase: ACTUAL Tie On Depth: 8,112.17 Vertical Section:. Depth From (TVD) +N/-S +E/-W Direction (ft) (ft) (ft) (°) 33.70 0.00 0.00 0.00 Survey Program Date: 5/18/2010 From To (ft) (ft) Survey (Wellbore) Tool Name Description 35.57 8,112.17 K-12 Snry 1 GCT-MS (K-12) GCT-MS Schlumberger GCT multishot 8,125.00 8,208.15 K-126 R200 Interpolated (K-128) INC+TREND Inclinometer + known azi trend 8,243.67 8,645.00 K-128 R200 MWD (K-126) MWD+IFR+MS MWD +IFR + Multi Station 8,669.87 8,669.87 K-12B R300 Interpolated (K-12B) INC+TREND Incinometer + known azi trend 8,708.44 11,258.43 K-126 R300 R400 R500 MWD (K- 128) MWD+IFR+MS MWD +IFR + Multi Station 5/18/2010 3:35:09PM Page 2 COMPASS 2003.16 Build 71 Survey Report -Geographic Company: North America -ALASKA - BP Project: Prudhoe Bay Site: PB K Pad Well:. K-12 DIMS Welibore: K-126 .Design: K-12B Survey `Measured Vertical Depth Inclination Azimuth Depth (~) (°) l°) (~) 33.70 0.00 0.00 33.70 35.57 0.17 15.28 35.57 46.87 0.12 342.94 46.87 60.37 0.08 316.60 60.37 74.17 0.08 305.99 74.17 88.17 0.08 296.05 88.17 102.37 0.08 282.41 102.37 116.67 0.08 269.22 116.67 131.07 0.10 253.82 131.07 145.37 0.10 235.98 145.37 159.77 0.10 221.58 159.77 174.17 0.12 215.52 174.17 188.47 0.15 213.39 188.47 202.77 0.18 208.93 202.77 217.07 0.20 203.27 217.07 231.37 0.20 196.33 231.37 245.57 0.20 190.36 245.57 259.97 0.18 187.00 259.97 274.07 0.17 185.39 274.07 288.27 0.15 187.60 288.27 302.37 0.15 192.77 302.37 316.47 0.15 198.46 316.47 330.57 0.15 205.83 330.57 344.77 0.17 213.05 344.77 358.87 0.20 218.24 358.87 372.97 0.22 222.74 372.97 387.07 0.25 226.98 387.07 401.17 0.30 230.28 401.17 415.17 0.35 231.98 415.17 429.17 0.37 232.11 429.17 443.27 0.37 231.53 443.27 457.47 0.40 230.27 457.47 471.57 0.40 229.29 471.57 485.67 0.38 228.78 485.67 500.07 0.38 226.91 500.07 515.07 0.37 224.72 515.07 530.27 0.37 223.85 530.27 545.47 0.37 223.26 545.47 560.77 0.35 223.63 560.77 575.97 0.32 218.83 575.96 591.07 0.30 210.11 591.06 606.27 0.28 202.57 606.26 621.37 0.25 196.08 621.36 636.57 0.25 194.45 636.56 651.77 0.25 197.25 651.76 666.97 0.25 200.46 666.96 682.27 0.25 204.24 682.26 697.47 0.27 210.45 697.46 712.67 0.30 215.77 712.66 727.97 0.32 219.11 727.96 743.17 0.35 221.19 743.16 758.37 0.42 222.17 758.36 773.67 0.45 222.15 773.66 788.87 0.43 221.06 788.86 803.97 0.40 221.42 803.96 Local Co-ordinate Reference: Well K-12_DIMS TVD Reference: K-128 ~ 57.46ft (Doyon 14) MD Reference: K-128 @ 57.46ft (Doyon 14) North Reference: True Survey Calculation Method: Minimum Curvature Database: EDM .16 - Anc Prod - WH24P Map Map +N/S +E/.W Northing Fasting (g) (ft) (ft) (ft) Latitude Longitude ~ 0.00 0.00 5,975,524.01 671,371.98 70° 20' 20.437 N 148° 36' 33.602 W 0.00 0.00 5,975,524.01 671,371.98 70° 20' 20.437 N 148° 36' 33.602 W 0.03 0.00 5,975,524.04 671,371.99 70° 20' 20.437 N 148° 36' 33.602 W I 0.05 -0.01 5,975,524.06 671,371.97 70° 20' 20.437 N 148° 36' 33.602 W ~ 0.06 -0.02 5,975,524.07 671,371.96 70° 20' 20.437 N 148° 36' 33.603 W 0.07 -0.04 5,975,524.08 671,371.94 70° 20' 20.437 N 148° 36' 33.603 W 0.08 -0.06 5,975,524.09 671,371.92 70° 20' 20.438 N 148° 36' 33.604 W 0.08 -0.08 5,975,524.09 671,371.90 70° 20' 20.438 N 148° 36' 33.604 W 0.08 -0.10 5,975,524.08 671,371.88 70° 20' 20.437 N 148° 36' 33.605 W 0.07 -0.12 5,975,524.07 671,371.86 70° 20' 20.437 N 148° 36' 33.606 W 0.05 -0.14 5,975,524.05 671,371.84 70° 20' 20.437 N 148° 36' 33.606 W ~~ 0.03 -0.16 5,975,524.03 671,371.82 70° 20' 20.437 N 148° 36' 33.607 W i 0.00 -0.18 5,975,524.00 671,371.81 70° 20' 20.437 N 148° 36' 33.607 W -0.03 -0.20 5,975,523.97 671,371.79 70° 20' 20.436 N 148° 36' 33.608 W -0.08 -0.22 5,975,523.93 671,371.77 70° 20' 20.436 N 148° 36' 33.608 W -0.12 -0.24 5,975,523.88 671,371.75 70° 20' 20.436 N 148° 36' 33.609 W -0.17 -0.25 5,975,523.83 671,371.74 70° 20' 20.435 N 148° 36' 33.609 W -0.22 -0.26 5,975,523.78 671,371.73 70° 20' 20.435 N 148° 36' 33.609 W -0.26 -0.26 5,975,523.74 671,371.73 70° 20' 20.434 N 148° 36' 33.610 W -0.30 -0.26 5,975,523.70 671,371.73 70° 20' 20.434 N 148° 36' 33.610 W -0.34 -0.27 5,975,523.66 671,371.72 70° 20' 20.433 N 148° 36' 33.610 W' -0.37 -0.28 5,975,523.63 671,371.71 70° 20' 20.433 N 148° 36' 33.610 W -0.41 -0.29 5,975,523.59 671,371.70 70° 20' 20.433 N 148° 36' 33.611 W -0.44 -0.31 5,975,523.56 671,371.68 70° 20' 20.432 N 148° 36' 33.611 W -0.48 -0.34 5,975,523.52 671,371.65 70° 20' 20.432 N 148° 36' 33.612 W -0.52 -0.37 5,975,523.48 671,371.62 70° 20' 20.432 N 148° 36' 33.613 W -0.56 -0.42 5,975,523.44 671,371.58 70° 20' 20.431 N 148° 36' 33.614 W -0.60 -0.47 5,975,523.39 671,371.53 70° 20' 20.431 N 148° 36' 33.616 W -0.65 -0.53 5,975,523.34 671,371.47 70° 20' 20.430 N 148° 36' 33.617 W -0.71 -0.60 5,975,523.29 671,371.40 70° 20' 20.430 N 148° 36' 33.619 W -0.76 -0.67 5,975,523.23 671,371.33 70° 20' 20.429 N 148° 36' 33.621 W -0.82 -0.74 5,975,523.17 671,371.26 70° 20' 20.429 N 148° 36' 33.624 W -0.89 -0.82 5,975,523.10 671,371.19 70° 20' 20.428 N 148° 36' 33.626 W -0.95 -0.89 5,975,523.04 671,371.12 70° 20' 20.427 N 148° 36' 33.628 W -1.01 -0.96 5,975,522.97 671,371.05 70° 20' 20.427 N 148° 36' 33.630 W -1.08 -1.03 5,975,522.90 671,370.98 70° 20' 20.426 N 148° 36' 33.632 W -1.15 -1.10 5,975,522.83 671,370.91 70° 20' 20.425 N 148° 36' 33.634 W -1.22 -1.17 5,975,522.76 671,370.84 70° 20' 20.425 N 148° 36' 33.636 W -1.29 -1.23 5,975,522.69 671,370.78 70° 20' 20.424 N 148° 36' 33.638 W -1.36 -1.29 5,975,522.62 671,370.72 70° 20' 20.423 N 148° 36' 33.640 W -1.43 -1.34 5,975,522.55 671,370.68 70° 20' 20.423 N 148° 36' 33.641 W -1.50 -1.37 5,975,522.48 671,370.65 70° 20' 20.422 N 148° 36' 33.642 W -1.56 -1.40 5,975,522.41 671,370.62 70° 20' 20.421 N 148° 36' 33.643 W -1.63 -1.41 5,975,522.35 671,370.61 70° 20' 20.421 N 148° 36' 33.643 W -1.69 -1.43 5,975,522.29 671,370.59 70° 20' 20.420 N 148° 36' 33.644 W -1.75 -1.45 5,975,522.22 671,370.57 70° 20' 20.420 N 148° 36' 33.644 W -1.81 -1.48 5,975,522.16 671,370.55 70° 20' 20.419 N 148° 36' 33.645 W -1.87 -1.51 5,975,522.10 671,370.52 70° 20' 20.418 N 148° 36' 33.646 W -1.94 -1.55 5,975,522.03 671,370.48 70° 20' 20.418 N 148° 36' 33.647 W -2.00 -1.60 5,975,521.97 671,370.43 70° 20' 20.417 N 148° 36' 33.649 W -2.07 -1.66 5,975,521.90 671,370.37 70° 20' 20.416 N 148° 36' 33.650 W -2.15 -1.73 5,975,521.82 671,370.31 70° 20' 20.416 N 148° 36' 33.652 W -2.23 -1.81 5,975,521.73 671,370.23 70° 20' 20.415 N 148° 36' 33.655 W -2.32 -1.88 5,975,521.64 671,370.15 70° 20' 20.414 N 148° 36' 33.657 W -2.40 -1.96 5,975,521.56 671,370.08 70° 20' 20.413 N 148° 36' 33.659 W 5/18P2010 3:35:09PM Page 3 COMPASS 2003.16 Build 71 • • Survey Report -Geographic Company: North America -ALASKA - BP Project: Prudhoe Bay Site: PB K Pad Well: K-12 DIMS Wellbore: K-12B Design: K-12B Local Co-ordinate Reference: Well K-12_DIMS ND Reference: K-12B Q 57.46ft (Doyon 14) MD Reference: K-12B @ 57.46ft (Doyon 14) North Reference: True Survey Calculation Method:. Minimum Curvature Database: EDM .16 - Anc Prod - WH24P Survey '~ ,i Measured Vertical Map Map Depth Inclination Azimuth Depth: +N/-S +E!-W Northing Fasting ~ tK) (°) (°) (ft) (ft) (ft) l~) Ift) latitude Longitude 819.17 0.37 222.96 819.16 -2.48 -2.02 5,975,521.48 671,370.02 70° 20' 20.412 N 148° 36' 33.661 W 834.27 0.32 226.34 834.26 -2.54 -2.09 5,975,521.42 671,369.96 70° 20' 20.412 N 148° 36' 33.663 W 849.57 0.30 232.77 849.56 -2.60 -2.15 5,975,521.36 671,369.89 70° 20' 20.411 N 148° 36' 33.665 W 864.77 0.28 235.70 864.76 -2.64 -2.21 5,975,521.32 671,369.83 70° 20' 20.411 N 148° 36' 33.667 W 879.97 0.27 239.95 879.96 -2.68 -2.27 5,975,521.27 671,369.77 70° 20' 20.410 N 148° 36' 33.668 W 895.27 0.25 245.41 895.26 -2.71 -2.34 5,975,521.24 671,369.71 70° 20' 20.410 N 148° 36' 33.670 W 910.67 0.25 247.24 910.66 -2.74 -2.40 5,975,521.21 671,369.65 70° 20' 20.410 N 148° 36' 33.672 W 925.87 0.25 249.79 925.86 -2.76 -2.46 5,975,521.19 671,369.59 70° 20' 20.410 N 148° 36' 33.674 W 941.17 0.25 250.00 941.16 -2.79 -2.52 5,975,521.16 671,369.53 70° 20' 20.409 N 148° 36' 33.676 W 956.37 0.25 248.34 956.36 -2.81 -2.58 5,975,521.14 671,369.47 70° 20' 20.409 N 148° 36' 33.677 W 971.57 0.28 247.43 971.56 -2.84 -2.65 5,975,521.11 671,369.40 70° 20' 20.409 N 148° 36' 33.679 W ~ 986.87 0.27 246.79 986.86 -2.87 -2.72 5,975,521.08 671,369.33 70° 20' 20.409 N 148° 36' 33.681 W 1,001.97 0.27 245.12 1,001.96 -2.89 -2.78 5,975,521.05 671,369.27 70° 20' 20.408 N 148° 36' 33.683 W 1,017.17 0.30 245.88 1,017.16 -2.93 -2.85 5,975,521.02 671,369.20 70° 20' 20.408 N 148° 36' 33.685 W 1,032.37 0.30 245.81 1,032.36 -2.96 -2.92 5,975,520.98 671,369.13 70° 20' 20.408 N 148° 36' 33.687 W ! 1,047.37 0.30 244.21 1,047.36 -2.99 -2.99 5,975,520.95 671,369.06 70° 20' 20.407 N 148° 36' 33.689 W 1,062.37 0.32 246.19 1,062.36 -3.03 -3.07 5,975,520.91 671,368.99 70° 20' 20.407 N 148° 36' 33.692 W I 1,077.47 0.32 247.65 1,077.46 -3.06 -3.15 5,975,520.88 671,368.91 70° 20' 20.407 N 148° 36' 33.694 W 1,092.47 0.30 246.45 1,092.46 -3.09 -3.22 5,975,520.84 671,368.84 70° 20' 20.406 N 148° 36' 33.696 W 1,107.47 0.30 243.92 1,107.46 -3.12 -3.29 5,975,520.81 671,368.76 70° 20' 20.406 N 148° 36' 33.698 W 1,122.47 0.30 240.77 1,122.46 -3.16 -3.36 5,975,520.77 671,368.70 70° 20' 20.406 N 148° 36' 33.700 W 1,137.47 0.32 240.10 1,137.46 -3.20 -3.43 5,975,520.73 671,368.63 70° 20' 20.405 N 148° 36' 33.702 W i 1,152.47 0.32 240.81 1,152.46 -3.24 -3.50 5,975,520.69 671,368.55 70° 20' 20.405 N 148° 36' 33.704 W ~ 1,167.47 0.32 239.24 1,167.46 -3.28 -3.58 5,975,520.64 671,368.48 70° 20' 20.404 N 148° 36' 33.706 W 1,182.47 0.32 236.76 1,182.46 -3.33 -3.65 5,975,520.60 671,368.41 70° 20' 20.404 N 148° 36' 33.708 W 1,197.47 0.32 232.34 1,197.46 -3.38 -3.72 5,975,520.55 671,368.35 70° 20' 20.404 N 148° 36' 33.710 W 1,212.37 0.33 229.26 1,212.36 -3.43 -3.78 5,975,520.49 671,368.28 70° 20' 20.403 N 148° 36' 33.712 W 1,227.27 0.33 227.01 1,227.26 -3.49 -3.85 5,975,520.43 671,368.22 70° 20' 20.402 N 148° 36' 33.714 W 1,242.27 0.35 223.95 1,242.26 -3.55 -3.91 5,975,520.37 671,368.16 70° 20' 20.402 N 148° 36' 33.716 W 1,257.17 0.35 223.30 1,257.16 -3.62 -3.97 5,975,520.30 671,368.10 70° 20' 20.401 N 148° 36' 33.718 W ! 1,272.17 0.37 221.23 1,272.15 -3.68 -4.04 5,975,520.23 671,368.03 70° 20' 20.400 N 148° 36' 33.720 W'! 1,287.27 0.37 218.63 1,287.25 -3.76 -4.10 5,975,520.15 671,367.97 70° 20' 20.400 N 148° 36' 33.722 W:; 1,302.17 0.37 218.74 1,302.15 -3.83 -4.16 5,975,520.08 671,367.92 70° 20' 20.399 N 148° 36' 33.723 W'~, 1,317.17 0.37 218.55 1,317.15 -3.91 -4.22 5,975,520.00 671,367.86 70° 20' 20.398 N 148° 36' 33.725 W! 1,332.17 0.37 218.22 1,332.15 -3.99 -4.28 5,975,519.92 671,367.80 70° 20' 20.398 N 148° 36' 33.727 W 1,347.17 0.38 218.17 1,347.15 -4.06 -4.34 5,975,519.85 671,367.74 70° 20' 20.397 N 148° 36' 33.729 W 1,362.17 0.42 219.94 1,362.15 -4.14 -4.41 5,975,519.76 671,367.67 70° 20' 20.396 N 148° 36' 33.731 W 1,377.17 0.48 224.12 1,377.15 -4.23 -4.48 5,975,519.67 671,367.60 70° 20' 20.395 N 148° 36' 33.733 W 1,392.07 0.57 229.49 1,392.05 -4.32 -4.58 5,975,519.58 671,367.50 70° 20' 20.394 N 148° 36' 33.736 W! 1,406.97 0.67 235.79 1,406.95 -4.42 -4.71 5,975,519.48 671,367.37 70° 20' 20.393 N 148° 36' 33.740 W 1,421.97 0.78 242.38 1,421.95 -4.52 -4.88 5,975,519.38 671,367.21 70° 20' 20.392 N 148° 36' 33.744 W 1,436.87 0.95 248.77 1,436.85 -4.61 -5.08 5,975,519.28 671,367.01 70° 20' 20.391 N 148° 36' 33.750 W 1,451.87 1.10 254.58 1,451.85 -4.69 -5.34 5,975,519.19 671,366.76 70° 20' 20.391 N 148° 36' 33.758 W 1,466.87 1.22 259.54 1,466.84 -4.76 -5.63 5,975,519.12 671,366.46 70° 20' 20.390 N 148° 36' 33.766 W 1,481.77 1.33 263.15 1,481.74 -4.81 -5.96 5,975,519.06 671,366.14 70° 20' 20.389 N 148° 36' 33.776 W 1,496.77 1.43 265.52 1,496.73 -4.85 -6.32 5,975,519.02 671,365.78 70° 20' 20.389 N 148° 36' 33.786 W ~ 1,511.77 1.52 267.24 1,511.73 -4.87 -6.70 5,975,518.99 671,365.39 70° 20' 20.389 N 148° 36' 33.798 W 1,526.77 1.60 268.83 1,526.72 -4.88 -7.11 5,975,518.96 671,364.99 70° 20' 20.389 N 148° 36' 33.810 W 1,541.77 1.73 270.53 1,541.72 -4.89 -7.55 5,975,518.95 671,364.55 70° 20' 20.389 N 148° 36' 33.822 W ~ 1,556.77 1.92 272.55 1,556.71 -4.87 -8.02 5,975,518.95 671,364.07 70° 20' 20.389 N 148° 36' 33.836 W 1,571.67 2.10 274.53 1,571.60 -4.84 -8.55 5,975,518.97 671,363.55 70° 20' 20.389 N 148° 36' 33.852 W 1,586.67 2.22 275.94 1,586.59 -4.79 -9.11 5,975,519.01 671,362.99 70° 20' 20.390 N 148° 36' 33.868 W ~~~ 1 601.57 2.27 277.05 1 601.48 -4.72 -9.69 5,975,519.06 671,362.41 70° 20' 20.390 N 148° 36' 33.885 W , 1,616.47 2.30 277.94 , 1,616.37 -4.64 -10.28 5,975,519.13 671,361.82 70° 20' 20.391 N 148° 36' 33.902 W 1,631.37 2.30 278.66 1,631.25 -4.56 -10.87 5,975,519.20 671,361.22 70° 20' 20.392 N 148° 36' 33.919 W 5/18/2010 3:35:09PM Page 4 COMPASS 2003.16 Build 71 • Survey Report -Geographic Company:. North America -ALASKA - BP :Project: Prudhoe Bay Site:: PB K Pad Well: K-12_DIMS Wellbore: K-126 .Design: K-126 Local Co-ordinate Reference:. Well K-12_DIMS ND Reference: K-128 @ 57.46ft (Doyon 14) MD Reference:. K-12B @ 57.46ft (Doyon 14) North Reference: True Survey Calculation Method: Minimum Curvature Database: EDM .16 - Anc Prod - WH24P Survey Measured Depth Inclination Azimuth 1,646.37 2.32 279.35 1,661.27 2.32 279.69 1,676.27 2.32 279.81 1,691.27 2.30 280.00 1,706.17 2.27 279.92 1,721.17 2.18 279.66 1,736.17 2.10 280.31 1,751.17 2.07 281.00 1,766.07 2.03 281.06 1,781.07 2.02 281.49 1,795.97 1.95 282.05 1,810.77 1.88 283.67 1,825.47 1.85 285.15 1,840.07 1.75 285.39 1,854.87 1.63 286.63 1,869.57 1.55 288.10 1,884.37 1.45 289.41 1,899.07 1.38 291.07 1,913.77 1.35 292.14 1,928.57 1.30 293.12 1,943.27 1.28 294.04 1,957.97 1.27 294.69 1,972.77 1.25 295.38 1,987.47 1.25 295.89 2,002.17 1.25 296.56 2,016.77 1.20 297.13 2,031.47 1.10 297.58 2,046.17 0.97 298.70 2,060.97 0.90 300.30 2,075.67 0.85 302.01 2,090.47 0.78 304.11 2,105..17 0.77 304.90 2,119.97 0.73 304.89 2,134.67 0.70 306.21 ', 2,149.47 0.67 307.89 2,164.17 0.67 309.37 2,178.87 0.65 311.05 2,193.57 0.63 312.76 2,208.27 0.63 314.48 2,222.97 0.65 315.46 2,237.57 0.65 315.66 2,252.37 0.65 316.98 2,267.17 0.65 320.99 2,281.87 0.65 324.80 2,296.67 0.65 326.75 2,311.37 0.65 329.33 ~ 2,326.17 0.67 330.28 ~ 2,340.87 0.70 328.80 ~I 2,355.67 0.70 328.19 2,370.37 0.68 328.02 2,385.07 0.65 327.54 2,399.77 0.60 327.70 2,414.47 0.55 328.00 i 2,429.17 0.52 327.69 .2,443.97 0.48 327.98 Vertical Map Map Depth +N/-S +E/.W Northing Fasting ~ (~) (~) Ift) 1ft) 1~) Latitude Longitude ' 1,646.24 -4.46 -11.47 5,975,519.28 671,360.62 70° 20' 20.393 N 148° 36' 33.937 W 1,661.13 -4.36 -12.06 5,975,519.37 671,360.03 70° 20' 20.394 N 148° 36' 33.954 W 1,676.12 -4.26 -12.66 5,975,519.46 671,359.43 70° 20' 20.395 N 148° 36' 33.972 W 1,691.11 -4.16 -13.26 5,975,519.55 671,358.83 70° 20' 20.396 N 148° 36' 33.989 W 1,705.99 -4.05 -13.84 5,975,519.64 671,358.24 70° 20' 20.397 N 148° 36' 34.006 W 1,720.98 -3.96 -14.41 5,975,519.72 671,357.66 70° 20' 20.398 N 148° 36' 34.023 W 1,735.97 -3.86 -14.97 5,975,519.81 671,357.11 70° 20' 20.399 N 148° 36' 34.039 W 1,750.96 -3.76 -15.50 5,975,519.90 671,356.57 70° 20' 20.400 N 148° 36' 34.055 W 1,765.85 -3.66 -16.03 5,975,519.99 671,356.05 70° 20' 20.401 N 148° 36' 34.070 W. 1,780.84 -3.55 -16.55 5,975,520.08 671,355.52 70° 20' 20.402 N 148° 36' 34.085 W ~ 1,795.73 -3.45 -17.05 5,975,520.17 671,355.02 70° 20' 20.403 N 148° 36' 34.100 W 1,810.53 -3.34 -17.53 5,975,520.27 671,354.53 70° 20' 20.404 N 148° 36' 34.114 W 1,825.22 -3.22 -18.00 5,975,520.38 671,354.07 70° 20' 20.405 N 148° 36' 34.128 W 1,839.81 -3.10 -18.44 5,975,520.49 671,353.62 70° 20' 20.406 N 148° 36' 34.141 W 1,854.60 -2.98 -18.86 5,975,520.60 671,353.20 70° 20' 20.407 N 148° 36' 34.153 W 1,869.30 -2.86 -19.25 5,975,520.71 671,352.81 70° 20' 20.409 N 148° 36' 34.164 W 1,884.09 -2.73 -19.61 5,975,520.83 671,352.44 70° 20' 20.410 N 148° 36' 34.175 W 1,898.79 -2.61 -19.96 5,975,520.95 671,352.10 70° 20' 20.411 N 148° 36' 34.185 W 1,913.49 -2.48 -20.28 5,975,521.07 671,351.77 70° 20' 20.412 N 148° 36' 34.194 W 1,928.28 -2.34 -20.60 5,975,521.19 671,351.45 70° 20' 20.414 N 148° 36' 34.204 W 1,942.98 -2.21 -20.90 5,975,521.32 671,351.14 70° 20' 20.415 N 148° 36' 34.212 W 1,957.67 -2.08 -21.20 5,975,521.45 671,350.84 70° 20' 20.416 N 148° 36' 34.221 W 1,972.47 -1.94 -21.49 5,975,521.58 671,350.54 70° 20' 20.418 N 148° 36' 34.230 W 1,987.17 -1.80 -21.78 5,975,521.71 671,350.25 70° 20' 20.419 N 148° 36' 34.238 W 2,001.86 -1.66 -22.07 5,975,521.84 671,349.96 70° 20' 20.420 N 148° 36' 34.247 W 2,016.46 -1.52 -22.35 5,975,521.98 671,349.68 70° 20' 20.422 N 148° 36' 34.255 W 2,031.16 -1.38 -22.61 5,975,522.11 671,349.41 70° 20' 20.423 N 148° 36' 34.262 W 2,045.85 -1.26 -22.84 5,975,522.23 671,349.18 70° 20' 20.424 N 148° 36' 34.269 W' 2,060.65 -1.14 -23.05 5,975,522.34 671,348.96 70° 20' 20.426 N 148° 36' 34.275 W 2,075.35 -1.02 -23.25 5,975,522.45 671,348.77 70° 20' 20.427 N 148° 36' 34.281 W 2,090.15 -0.91 -23.42 5,975,522.56 671,348.59 70° 20' 20.428 N 148° 36' 34.286 W 2,104.85 -0.80 -23.59 5,975,522.67 671,348.42 70° 20' 20.429 N 148° 36' 34.291 W 2,119.65 -0.68 -23.75 5,975,522.78 671,348.26 70° 20' 20.430 N 148° 36' 34.296 W'i 2,134.35 -0.58 -23.90 5,975,522.88 671,348.11 70° 20' 20.431 N 148° 36' 34.300 W 2,149.14 -0.47 -24.04 5,975,522.99 671,347.97 70° 20' 20.432 N 148° 36' 34.304 W ~ 2,163.84 -0.36 -24.17 5,975,523.09 671,347.83 70° 20' 20.433 N 148° 36' 34.308 W 2,178.54 -0.26 -24.30 5,975,523.20 671,347.70 70° 20' 20.434 N 148° 36' 34.312 W 2,193.24 -0.15 -24.42 5,975,523.30 671,347.57 70° 20' 20.435 N 148° 36' 34.315 W 2,207.94 -0.03 -24.54 5,975,523.41 671,347.45 70° 20' 20.436 N 148° 36' 34.319 W 2,222.64 0.08 -24.66 5,975,523.53 671,347.33 70° 20' 20:438 N 148° 36' 34.322 W, 2,237.24 0.20 -24.77 5,975,523.64 671,347.22 70° 20' 20.439 N 148° 36' 34.325 W 2,252.04 0.32 -24.89 5,975,523.76 671,347.10 70° 20' 20.440 N 148° 36' 34.329 W 2,266.84 0.45 -25.00 5,975,523.88 671,346.98 70° 20' 20.441 N 148° 36' 34.332 W 2,281.54 0.58 -25.10 5,975,524.01 671,346.88 70° 20' 20.442 N 148° 36' 34.335 W 2,296.34 0.72 -25.19 5,975,524.15 671,346.78 70° 20' 20.444 N 148° 36' 34.338 W 2,311.03 0.86 -25.28 5,975,524.29 671,346.69 70° 20' 20.445 N 148° 36' 34.340 W ~ 2,325.83 1.01 -25.37 5,975,524.44 671,346.60 70° 20' 20.447 N 148° 36' 34.343 W ' 2,340.53 1.16 -25.46 5,975,524.59 671,346.51 70° 20' 20.448 N 148° 36' 34.345 W 2,355.33 1.31 -25.55 5,975,524.74 671,346.41 70° 20' 20.450 N 148° 36' 34.348 W 2,370.03 1.46 -25.64 5,975,524.89 671,346.32 70° 20' 20.451 N 148° 36' 34.351 W 2,384.73 1.61 -25.73 5,975,525.03 671,346.22 70° 20' 20.453 N 148° 36' 34.354 W 2,399.43 1.74 -25.82 5,975,525.16 671,346.13 70° 20' 20.454 N 148° 36' 34.356 W 2,414.13 1.87 -25.90 5,975,525.28 671,346.05 70° 20' 20.455 N 148° 36' 34.358 W 2,428.83 1.99 -25.97 5,975,525.40 671,345.98 70° 20' 20.456 N 148° 36' 34.361 W 2,443.63 2.09 -26.04 5,975,525.51 671,345.90 70° 20' 20.457 N 148° 36' 34.363 W 5/18/2010 3.~35:09PM Page 5 COMPASS 2003.16 Build 71 Company: North America -ALASKA - BP Project: Prudhoe Bay Site: PB K Pad WeIL• K-12_DIMS Wellbore: K-12B Design:: K-126 Survey Report -Geographic Local Co-ordinate Reference: Well K-12_DIMS TVD Reference: K-126 @ 57.46ft (Doyon 14) MD Reference: K-12B @ 57.46ft (Doyon 14) North Reference: True Survey Calculation Method: Minimum Curvature Database: EDM .16 - Anc Prod - WH24P Survey Measured Vertical Map Map .Depth Inclination Azimuth Depth +N/-S +E/-W Northing. Fasting (ft) (°) (°) (ft) (ft) (ft) (~) (~) Latitude Longitude 2,458.67 0.45 328.52 2,458.33 2.20 -26.10 5,975,525.61 671,345.84 70° 20' 20.458 N 148° 36' 34.364 W ii 2,473.47 0.40 329.09 2,473.13 2.29 -26.16 5,975,525.70 671,345.78 70° 20' 20.459 N 148° 36' 34.366 W 2,488.17 0.33 329.24 2,487.83 2.37 -26.21 5,975,525.78 671,345.73 70° 20' 20.460 N 148° 36' 34.367 W 2,502.97 0.32 326.71 2,502.63 2.44 -26.25 5,975,525.85 671,345.68 70° 20' 20.461 N 148° 36' 34.369 W 2,517.77 0.32 324.37 2,517.42 2.51 -26.30 5,975,525.92 671,345.64 70° 20' 20.461 N 148° 36' 34.370 W 2,532.47 0.28 322.69 2,532.12 2.57 -26.35 5,975,525.98 671,345.59 70° 20' 20.462 N 148° 36' 34.371 W 2,547.17 0.25 320.03 2,546.82 2.63 -26.39 5,975,526.03 671,345.55 70° 20' 20.463 N 148° 36' 34.373 W 2,561.87 0.25 316.18 2,561.52 2.67 -26.43 5,975,526.07 671,345.50 70° 20' 20.463 N 148° 36' 34.374 W 2,576.37 0.25 311.85 2,576.02 2.72 -26.48 5,975,526.12 671,345.45 70° 20' 20.463 N 148° 36' 34.375 W 2,590.87 0.20 296.15 2,590.52 2.75 -26.52 5,975,526.15 671,345.41 70° 20' 20.464 N 148° 36' 34.377 W 2,605.27 0.13 266.34 2,604.92 2.76 -26.56 5,975,526.16 671,345.37 70° 20' 20.464 N 148° 36' 34.378 W 2,619.67 0.10 243.63 2,619.32 2.75 -26.59 5,975,526.15 671,345.34 70° 20' 20.464 N 148° 36' 34.379 W 2,634.27 0.10 228.63 2,633.92 2.74 -26.61 5,975,526.14 671,345.32 70° 20' 20.464 N 148° 36' 34.379 W 2,648.77 0.08 212.21 2,648.42 2.72 -26.62 5,975,526.12 671,345.31 70° 20' 20.463 N 148° 36' 34.380 W' 2,663.27 0.07 180.01 2,662.92 2.70 -26.63 5,975,526.10 671,345.30 70° 20' 20.463 N 148° 36' 34.380 W 2,677.77 0.05 134.58 2,677.42 2.69 -26.63 5,975,526.09 671,345.31 70° 20' 20.463 N 148° 36' 34.380 W !, 2,692.27 0.07 108.99 2,691.92 2.68 -26.61 5,975,526.08 671,345.32 70° 20' 20.463 N 148° 36' 34.379 W 2,706.77 0.08 100.47 2,706.42 2.68 -26.59 5,975,526.08 671,345.34 70° 20' 20.463 N 148° 36' 34.379 W 2,721.27 0.08 107.54 2,720.92 2.67 -26.57 5,975,526.07 671,345.36 70° 20' 20.463 N 148° 36' 34.378 W 2,735.77 0.08 117.75 2,735.42 2.67 -26.56 5,975,526.07 671,345.38 70° 20' 20.463 N 148° 36' 34.378 W 2,750.27 0.08 111.63 2,749.92 2.66 -26.54 5,975,526.06 671,345.39 70° 20' 20.463 N 148° 36' 34.377 W 2,764.67 0.10 114.23 2,764.32 2.65 -26.52 5,975,526.05 671,345.42 70° 20' 20.463 N 148° 36' 34.376 W 2,779.17 0.12 115.19 2,778.82 2.64 -26.49 5,975,526.04 671,345.44 70° 20' 20.463 N 148° 36' 34.376 W 2,793.57 0.17 107.35 2,793.22 2.62 -26.46 5,975,526.03 671,345.48 70° 20' 20.463 N 148° 36' 34.375 W 2,807.97 0.22 103.76 2,807.62 2.61 -26.41 5,975,526.01 671,345.52 70° 20' 20.462 N 148° 36' 34.373 W 2,822.37 0.27 100.18 2,822.02 2.60 -26.35 5,975,526.00 671,345.58 70° 20' 20.462 N 148° 36' 34.372 W ~ 2,836.87 0.32 97.60 2,836.52 2.59 -26.28 5,975,525.99 671,345.66 70° 20' 20.462 N 148° 36' 34.369 W! 2,851.47 0.33 94.83 2,851.12 2.58 -26.19 5,975,525.99 671,345.74 70° 20' 20.462 N 148° 36' 34.367 W 2,865.87 0.38 92.86 2,865.52 2.57 -26.10 5,975,525.98 671,345.83 70° 20' 20.462 N 148° 36' 34.364 W' 2,880.37 0.40 91.47 2,880.02 2.57 -26.01 5,975,525.98 671,345.93 70° 20' 20.462 N 148° 36' 34.362 W 2,894.87 0.40 89.63 2,894.52 2.57 -25.90 5,975,525.98 671,346.03 70° 20' 20.462 N 148° 36' 34.359 W 2,909.37 0.40 88.33 2,909.02 2.57 -25.80 5,975,525.99 671,346.13 70° 20' 20.462 N 148° 36' 34.356 W 2,923.87 0.42 87.66 2,923.52 2.57 -25.70 5,975,525.99 671,346.23 70° 20' 20.462 N 148° 36' 34.353 W 2,938.37 0.42 87.31 2,938.02 2.58 -25.59 5,975,526.00 671,346.34 70° 20' 20.462 N 148° 36' 34.350 W 2,952.77 0.42 87.28 2,952.42 2.58 -25.49 5,975,526.01 671,346.44 70° 20' 20.462 N 148° 36' 34.346 W 2,967.27 0.43 87.26 2,966.92 2.59 -25.38 5,975,526.01 671,346.55 70° 20' 20.462 N 148° 36' 34.343 W ~ 2,981.67 0.43 87.43 2,981.32 2.59 -25.27 5,975,526.02 671,346.66 70° 20' 20.462 N 148° 36' 34.340 W 2,996.07 0.43 87.65 2,995.72 2.60 -25.17 5,975,526.03 671,346.77 70° 20' 20.462 N 148° 36' 34.337 W' ~ 3,010.47 0.43 88.24 3,010.12 2.60 -25.06 5,975,526.04 671,346.88 70° 20' 20.462 N 148° 36' 34.334 W 3,024.97 0.45 89.35 3,024.62 2.60 -24.95 5,975,526.04 671,346.99 70° 20' 20.462 N 148° 36' 34.331 W 3,039.47 0.43 88.02 3,039.12 2.61 -24.83 5,975,526.04 671,347.10 70° 20' 20.462 N 148° 36' 34.327 W 3,053.97 0.42 91.01 3,053.62 2.61 -24.73 5,975,526.05 671,347.21 70° 20' 20.462 N 148° 36' 34.324 W 3,068.57 0.43 98.39 3,068.22 2.60 -24.62 5,975,526.04 671,347.31 70° 20' 20.462 N 148° 36' 34.321 W ~ ~~ 3,083.07 0.47 100.75 3,082.72 2.58 -24.51 5,975,526.03 671,347.43 70° 20' 20.462 N 148° 36' 34.318 W 3,097.57 0.45 100.52 3,097.22 2.56 -24.39 5,975,526.01 671,347.54 70° 20' 20.462 N 148° 36' 34.314 W' i 3,111.97 0.45 100.82 3,111.62 2.54 -24.28 5,975,525.99 671,347.65 70° 20' 20.462 N 148° 36' 34.311 W 3,126.47 0.42 100.55 3,126.12 2.52 -24.17 5;975,525.97 671,347.76 70° 20' 20.461 N 148° 36' 34.308 W 3,140.87 0.40 100.14 3,140.52 2.50 -24.07 5,975,525.95 671,347.86 70° 20' 20.461 N 148° 36' 34.305 W 3,155.37 0.40 100.74 3,155.01 2.48 -23.97 5,975,525.94 671,347.96 70° 20' 20.461 N 148° 36' 34.302 W 3,169.77 0.37 102.01 3,169.41 2.46 -23.88 5,975,525.92 671,348.06 70° 20' 20.461 N 148° 36' 34.299 W'' 3,184.17 0.33 103.23 3,183.81 2.44 -23.79 5,975,525.90 671,348.14 70° 20' 20.461 N 148° 36' 34.297 W 3,198.47 0.32 103.80 3,198.11 2.42 -23.71 5,975,525.89 671,348.22 70° 20' 20.461 N 148° 36' 34.295 W 3,212.97 0.30 104.34 3,212.61 2.40 -23.64 5,975,525.87 671,348.30 70° 20' 20.460 N 148° 36' 34.292 W 3,227.47 0.30 105.11 3,227.11 2.38 -23.56 5,975,525.85 671,348.37 70° 20' 20.460 N 148° 36' 34.290 W 3,241.87 0.30 105.25 3,241.51 2.36 -23.49 5,975,525.83 671,348.45 70° 20' 20.460 N 148° 36' 34.288 W 5/18x2010 3:35:09PM Page 6 COMPASS 2003.16 Build 71 . ~ a Survey Report -Geographic Company: North America -ALASKA - BP Local Co-ordinate. Reference: 'Well K-12 DIMS Project:. Prudhoe Bay ND Reference: K-128 @ 57.46ft (Doyon 14) Site: PB K Pad MD Reference:. K-12B @ 57.46ft (Doyon 14) Well: K-12_DIMS North Reference: True Wellbore: K-12B Survey Calculation Method: Minimum Curvature Design: K-126 Database: EDM .16 - Anc Prod - WH24P Survey Measured Vertical Map Map. Depth Inclination Azimuth Depth +N/S +E/.W Northing Fasting (ft) (°) (°) (ft) (ft) (ft) Ift) (~) Latitude Longitude ~ 3,256.37 0.30 105.04 3,256.01 2.34 -23.42 5,975,525.82 671,348.52 70° 20' 20.460 N 148° 36' 34.286 W 3,271.07 0.32 104.88 3,270.71 2.32 -23.34 5,975,525.80 671,348.60 70° 20' 20.460 N 148° 36' 34.284 W ~ 3,286.07 0.35 104.74 3,285.71 2.30 -23.26 5,975,525.78 671,348.68 70° 20' 20.459 N 148° 36' 34.281 W 3,301.27 0.33 105.13 3,300.91 2.28 -23.17 5,975,525.76 671,348.77 70° 20' 20.459 N 148° 36' 34.279 W j 3,316.37 0.32 105.85 3,316.01 2.26 -23.09 5,975,525.73 671,348.85 70° 20' 20.459 N 148° 36' 34.276 W 3,331.67 0.33 106.30 3,331.31 2.23 -23.00 5,975,525.71 671,348.94 70° 20' 20.459 N 148° 36' 34.274 W 3,346.97 0.32 106.69 3,346.61 2.21 -22.92 5,975,525.69 671,349.02 70° 20' 20.458 N 148° 36' 34.271 W 3,362.37 0.30 107.71 3,362.01 2.18 -22.84 5,975,525.67 671,349.10 70° 20' 20.458 N 148° 36' 34.269 W 3,377.77 0.32 107.36 3,377.41 2.16 -22.76 5,975,525.64 671,349.18 70° 20' 20.458 N 148° 36' 34.267 W 3,393.17 0.35 105.88 3,392.81 2.13 -22.67 5,975,525.62 671,349.27 70° 20' 20.458 N 148° 36' 34.264 W 3,408.57 0.35 110.46 3,408.21 2.10 -22.58 5,975,525.59 671,349.36 70° 20' 20.457 N 148° 36' 34.262 W 3,424.07 0.40 114.92 3,423.71 2.06 -22.49 5,975,525.56 671,349.45 70° 20' 20.457 N 148° 36' 34.259 W 3,439.57 0.42 112.85 3,439.21 2.02 -22.39 5,975,525.51 671,349.56 70° 20' 20.457 N 148° 36' 34.256 W 3,454.97 0.38 112.64 3,454.61 1.98 -22.29 5,975,525.47 671,349.66 70° 20' 20.456 N 148° 36' 34.253 W 3,470.47 0.37 113.74 3,470.11 1.94 -22.20 5,975,525.44 671,349.75 70° 20' 20.456 N 148° 36' 34.250 W 3,485.97 0.35 115.60 3,485.61 1.90 -22.11 5,975,525.40 671,349.84 70° 20' 20.455 N 148° 36' 34.248 W 3,501.47 0.35 117.64 3,501.11 1.85 -22.02 5,975,525.36 671,349.92 70° 20' 20.455 N 148° 36' 34.245 W 3,516.87 0.37 117.17 3,516.51 1.81 -21.94 5,975,525.31 671,350.01 70° 20' 20.455 N 148° 36' 34.243 W 3,532.37 0.35 117.40 3,532.01 1.76 -21.85 5,975,525.27 671,350.10 70° 20' 20.454 N 148° 36' 34.240 W 3,547.77 0.32 119.13 3,547.41 1.72 -21.77 5,975,525.23 671,350.18 70° 20' 20.454 N 148° 36' 34.238 W 3,563.17 0.30 122.06 3,562.81 1.68 -21.70 5,975,525.19 671,350.25 70° 20' 20.453 N 148° 36' 34.236 W 3,578.67 0.28 125.34 3,578.31 1.64 -21.64 5,975,525.15 671,350.32 70° 20' 20.453 N 148° 36' 34.234 W 3,594.07 0.28 128.37 3,593.71 1.59 -21.58 5,975,525.10 671,350.38 70° 20' 20.452 N 148° 36' 34.232 W 3,609.47 0.27 133.00 3,609.11 1.54 -21.52 5,975,525.06 671,350.44 70° 20' 20.452 N 148° 36' 34.230 W 3,624.97 0.28 137.72 3,624.61 1.49 -21.47 5,975,525.01 671,350.49 70° 20' 20.451 N 148° 36' 34.229 W 3,640.37 0.30 142.51 3,640.01 1.43 -21.42 5,975,524.95 671,350.54 70° 20' 20.451 N 148° 36' 34.228 W 3,655.87 0.33 150.14 3,655.51 1.36 -21.37 5,975,524.88 671,350.59 70° 20' 20.450 N 148° 36' 34.226 W 3,671.37 0.33 156.65 3,671.01 1.28 -21.33 5,975,524.80 671,350.63 70° 20' 20.449 N 148° 36' 34.225 W 3,686.87 0.33 160.66 3,686.51 1.20 -21.30 5,975,524.72 671,350.67 70° 20' 20.448 N 148° 36' 34.224 W 3,702.37 0.33 164.32 3,702.01 1.11 -21.27 5,975,524.63 671,350.69 70° 20' 20.448 N 148° 36' 34.223 W 3,717.87 0.35 166.66 3,717.51 1.02 -21.25 5,975,524.54 671,350.72 70° 20' 20.447 N 148° 36' 34.223 W 3,733.47 0.38 165.63 3,733.11 0.93 -21.22 5,975,524.45 671,350.75 70° 20' 20.446 N 148° 36' 34.222 W 3,748.97 0.38 163.75 3,748.60 0.83 -21.20 5,975,524.35 671,350.78 70° 20' 20.445 N 148° 36' 34.221 W 3,764.47 0.37 166.31 3,764.10 0.73 -21.17 5,975,524.25 671,350.80 70° 20' 20.444 N 148° 36' 34.220 W'i 3 779.97 0.37 168.83 3,779.60 0.63 -21.15 5,975,524.15 671,350.83 70° 20' 20.443 N 148° 36' 34.220 W , 3,795.37 0.33 171.57 3,795.00 0.54 -21.13 5,975,524.06 671,350.85 70° 20' 20.442 N 148° 36' 34.219 W ~ 3,810.87 0.30 175.99 3,810.50 0.45 -21.12 5,975,523.98 671,350.86 70° 20' 20.441 N 148° 36' 34.219 W ', 3,826.47 0.32 177.49 3,826.10 0.37 -21.12 5,975,523.89 671,350.86 70° 20' 20.440 N 148° 36' 34.219 W 3,841.97 0.30 178.99 3,841.60 0.29 -21.12 5,975,523.81 671,350.87 70° 20' 20.440 N 148° 36' 34.219 W 3,857.47 0.30 182.02 3,857.10 0.20 -21.12 5,975,523.73 671,350.87 70° 20' 20.439 N 148° 36' 34.219 W 3,873.07 0.30 185.10 3,872.70 0.12 -21.12 5,975,523.65 671,350.87 70° 20' 20.438 N 148° 36' 34.219 W 888.57 3 0.28 185.10 3,888.20 0.04 -21.13 5,975,523.57 671,350.86 70° 20' 20.437 N 148° 36' 34.219 W , 3,904.17 0.23 183.62 3,903.80 -0.02 -21.13 5,975,523.50 671,350.86 70° 20' 20.436 N 148° 36' 34.219 W ~ 3,919.67 0.17 202.46 3,919.30 -0.08 -21.15 5,975,523.45 671,350.85 70° 20' 20.436 N 148° 36' 34.220 W 3,935.27 0.18 221.50 3,934.90 -0.12 -21.17 5,975,523.41 671,350.82 70° 20' 20.436 N 148° 36' 34.220 W 3,950.67 0.23 220.61 3,950.30 -0.16 -21.21 5,975,523.36 671,350.79 70° 20' 20.435 N 148° 36' 34.221 W 3,966.17 0.17 230.82 3,965.80 -0.20 -21.24 5,975,523.33 671,350.75 70° 20' 20.435 N 148° 36' 34.222 W 3,981.67 0.10 252.17 3,981.30 -0.22 -21.28 5,975,523.31 671,350.72 70° 20' 20.435 N 148° 36' 34.223 W ~ 3,997.17 0.08 276.06 3,996.80 -0.22 -21.30 5,975,523.30 671,350.70 70° 20' 20.435 N 148° 36' 34.224 W i 4,012.67 0.08 292.89 4,012.30 -0.21 -21.32 5,975,523.31 671,350.68 70° 20' 20.435 N 148° 36' 34.225 W' 4,028.17 0.07 270.32 4,027.80 -0.21 -21.34 5,975,523.31 671,350.66 70° 20' 20.435 N 148° 36' 34.225 W 4,043.47 0.07 203.28 4,043.10 -0.22 -21.35 5,975,523.30 671,350.64 70° 20' 20.435 N 148° 36' 34.226 W 4,058.77 0.08 164.52 4,058.40 -0.24 -21.35 5,975,523.28 671,350.64 70° 20' 20.434 N 148° 36' 34.226 W 4,074.07 0.08 167.81 4,073.70 -0.26 -21.35 5,975,523.26 671,350.65 70° 20' 20.434 N 148° 36' 34.225 W 4,089.37 0.08 160.12 4,089.00 -0.28 -21.34 5,975,523.24 671,350.66 70° 20' 20.434 N 148° 36' 34.225 W' 5/18x1010 3:35:09PM Page 7 COMPASS 2003.16 Buitd 71 , Survey Report -Geographic Company: North America -ALASKA - BP Project:. Prudhoe Bay Site: PB K Pad Well: K-12 DIMS Welibore; K-12B .Design: K-126 Local Co-ordinate Reference: Well K-12_DIMS TVD Reference: K-126 @ 57.46ft (Doyon 14) MD Reference: K-126 @ 57.46ft (Doyon 14) North Reference: True Survey Calculation Method: Minimum Curvature Database: EDM .16 - Anc Prod - WH24P Survey Measured Vertical Depth Inclination Azimuth Depth +N/S +E/-W ($) (°) (°) (ft) (ft) (tt) 4,104.57 0.07 146.47 4,104.20 -0.29 -21.33 4,119.77 0.05 121.68 4,119.40 -0.31 -21.32 4,135.07 0.05 79.61 4,134.70 -0.31 -21.31 4,150.37 0.07 45.17 4,150.00 -0.30 -21.30 4,165.67 0.10 30.28 4,165.30 -0.28 -21.28 4,180.87 0.10 31.00 4,180.50 -0.26 -21.27 4,196.17 0.12 24.61 4,195.80 -0.23 -21.26 4,211.27 0.15 12.42 4,210.90 -0.20 -21.25 4,226.57 0.13 11.92 4,226.20 -0.16 -21.24 4,241.87 0.13 14.81 4,241.50 -0.13 -21.23 4,257.17 0.18 12.20 4,256.80 -0.09 -21.22 4,272.47 0.18 359.30 4,272.10 -0.04 -21.22 4,287.77 0.13 343.70 4,287.40 0.00 -21.22 4,303.07 0.12 339.08 4,302.70 0.03 -21.23 4,318.27 0.13 345.06 4,317.90 0.06 -21.24 4,333.57 0.17 351.27 4,333.20 0.10 -21.25 4,348.77 0.15 347.11 4,348.40 0.14 -21.26 4,364.07 0.10 344.45 4,363.70 0.18 -21.27 4,379.27 0.12 352.37 4,378.90 0.20 -21.27 4,394.47 0.15 358.27 4,394.10 0.24 -21.27 4,409.67 0.15 3.85 4,409.30 0.28 -21.27 4,424.97 0.15 6.48 4,424.60 0.32 -21.27 4,440.27 0.13 9.33 4,439.90 0.36 -21.26 4,455.57 0.12 32.04 4,455.20 0.39 -21.25 4,470.77 0.15 54.95 4,470.40 0.41 -21.23 4,485.97 0.18 56.89 4,485.60 0.44 -21.19 4,501.17 0.18 55.23 4,500.80 0.46 -21.15 4,516.47 0.20 55.28 4,516.10 0.49 -21.11 4,531.67 0.18 54.17 4,531.30 0.52 -21.07 4,546.97 0.18 56.26 4,546.60 0.55 -21.03 4,562.27 0.17 58.39 4,561.90 0.57 -20.99 4,577.47 0.17 59.60 4,577.10 0.60 -20.95 4,592.67 0.18 60.77 4,592.30 0.62 -20.91 4,607.87 0.18 61.82 4,607.50 0.64 -20.87 4,623.07 0.15 65.12 4,622.70 0.66 -20.83 4,638.37 0.13 69.13 4,638.00 0.68 -20.80 4,653.57 0.13 72.25 4,653.20 0.69 -20.76 4,668.87 0.13 73.42 4,668.50 0.70 -20.73 4,684.07 0.12 65.89 4,683.70 0.71 -20.70 4,699.37 0.08 74.86 4,699.00 0.72 -20.67 4,714.57 0.07 99.35 4,714.20 0.72 -20.66 4,729.87 0.07 106.69 4,729.50 0.72 -20.64 4,744.97 0.05 114.49 4,744.60 0.71 -20.62 ', 4,759.97 0.05 134.10 4,759.60 0.70 -20.61 4,774.87 0.07 147.28 4,774.50 0.69 -20.60 4,789.77 0.08 150.31 4,789.40 0.68 -20.59 4,804.67 0.08 173.21 4,804.30 0.66 -20.59 4,819.67 0.08 182.66 4,819.30 0.63 -20.58 4,834.57 0.08 165.87 4,834.20 0.61 -20.58 4,849.57 0.08 159.72 4,849.20 0.59 -20.58 4,864.57 0.08 151.15 4,864.20 0.58 -20.57 4,879.57 0.08 143.91 4,879.20 0.56 -20.56 4,894.57 0.08 131.22 4,894.20 0.54 -20.54 4,909.57 0.07 116.01 4,909.20 0.53 -20.53 4,924.47 0.05 131.96 4,924.10 0.52 -20.51 Map: Map Northing Fasting (R) t~)' latitude Longitude 5,975,523.22 671,350.66 70° 20' 20.434 N 148° 36' 34.225 W 5,975,523.21 671,350.68 70° 20' 20.434 N 148° 36' 34.225 W 5,975,523.21 671,350.69 70° 20' 20.434 N 148° 36' 34.224 W 5,975,523.22 671,350.70 70° 20' 20.434 N 148° 36' 34.224 W 5,975,523.24 671,350.71 70° 20' 20.434 N 148° 36' 34.224 W 5,975,523.26 671,350.73 70° 20' 20.434 N 148° 36' 34.223 W 5,975,523.29 671,350.74 70° 20' 20.434 N 148° 36' 34.223 W ~ 5,975,523.32 671,350.75 70° 20' 20.435 N 148° 36' 34.222 W 5,975,523.36 671,350.76 70° 20' 20.435 N 148° 36' 34.222 W 5,975,523.39 671,350.76 70° 20' 20.435 N 148° 36' 34.222 W 5,975,523.43 671,350.77 70° 20' 20.436 N 148° 36' 34.222 W 5,975,523.48 671,350.78 70° 20' 20.436 N 148° 36' 34.222 W 5,975,523.52 671,350.77 70° 20' 20.437 N 148° 36' 34.222 W 5,975,523.55 671,350.76 70° 20' 20.437 N 148° 36' 34.222 W 5,975,523.58 671,350.75 70° 20' 20.437 N 148° 36' 34.222 W ~~ 5,975,523.62 671,350.74 70° 20' 20.438 N 148° 36' 34.223 W ~ 5,975,523.66 671,350.73 70° 20' 20.438 N 148° 36' 34.223 W ~, 5,975,523.70 671,350.72 70° 20' 20.438 N 148° 36' 34.223 W 5,975,523.72 671,350.72 70° 20' 20.439 N 148° 36' 34.223 W 5,975,523.76 671,350.71 70° 20' 20.439 N 148° 36' 34.223 W 5,975,523.80 671,350.71 70° 20' 20.439 N 148° 36' 34.223 W 5,975,523:84 671,350.71 70° 20' 20.440 N 148° 36' 34.223 W 5,975,523.88 671,350.72 70° 20' 20.440 N 148° 36' 34.223 W 5,975,523.91 671,350.73 70° 20' 20.441 N 148° 36' 34.223 W 5,975,523.93 671,350.75 70° 20' 20.441 N 148° 36' 34.222 W' 5,975,523.96 671,350.79 70° 20' 20.441 N ° ' 148° 36' 34.221 W I ' ° 5,975,523.99 671,350.83 70 20 20.441 N 34.220 W 148 36 5,975,524.02 671,350.87 70° 20' 20.442 N 148° 36' 34.219 W 5,975,524.05 671,350.91 70° 20' 20.442 N 148° 36' 34.217 W 5,975,524.07 671,350.95 70° 20' 20.442 N 148° 36' 34.216 W 5,975,524.10 671,350.99 70° 20' 20.442 N 148° 36' 34.215 W 5,975,524.12 671,351.03 70° 20' 20.443 N 148° 36' 34.214 W 5,975,524.15 671,351.07 70° 20' 20.443 N 148° 36' 34.213 W 5,975,524.17 671,351.11 70° 20' 20.443 N 148° 36' 34.212 W 5,975,524.19 671,351.15 70° 20' 20.443 N 148° 36' 34.210 W 5,975,524.21 671,351.18 70° 20' 20.443 N 148° 36' 34.209 W' 5,975,524.22 671,351.21 70° 20' 20.444 N 148° 36' 34.208 W 5,975,524.23 671,351.24 70° 20' 20.444 N 148° 36' 34.207 W 5,975,524.24 671,351.28 70° 20' 20.444 N 148° 36' 34.207 W 5,975,524.25 671,351.30 70° 20' 20.444 N 148° 36' 34.206 W 5,975,524.26 671,351.32 70° 20' 20.444 N 148° 36' 34.205 W ~ 5,975,524.25 671,351.34 70° 20' 20.444 N 148° 36' 34.205 W', 5,975,524.25 671,351.35 70° 20' 20.444 N 148° 36' 34.204 W 5,975,524.24 671,351.36 70° 20' 20.444 N 148° 36' 34.204 W' 5,975,524.23 671,351.37 70° 20' 20.444 N 148° 36' 34.204 W 5,975,524.21 671,351.38 70° 20' 20.443 N 148° 36' 34.203 W 5,975,524.19 671,351.39 70° ZO' 20.443 N 148° 36' 34.203 W 5,975,524.17 671,351.39 70° 20' 20.443 N 148° 36' 34.203 W 5,975,524.15 671,351.39 70° 20' 20.443 N 148° 36' 34.203 W 5,975,524.13 671,351.40 70° 20' 20.443 N 148° 36' 34.203 W 5,975,524.11 671,351.41 70° 20' 20.442 N 148° 36' 34.203 W 5,975,524.09 671,351.42 70° 20' 20.442 N 148° 36' 34.202 W 5,975,524.08 671,351.44 70° 20' 20.442 N 148° 36' 34.202 W 5,975,524.07 671,351.45 70° 20' 20.442 N 148° 36' 34.201 W 5,975,524.06 671,351.47 70° 20' 20.442 N 148° 36' 34.201 W 5/18/2010 3:35:09PM Page 8 COMPASS 2003.16 Build 71 i • Survey Report -Geographic Company: North America -ALASKA - BP Project: Prudhoe Bay Site: PB K Pad Well: K-12_DIMS Wellbore: K-12B Designs K-12B Local Co-oMinate Reference:. Weil K-12_DIMS ND Reference: K-12B @ 57.46ft (Doyon 14) MD Reference:. K-12B @ 57.46ft (Doyon 14) North Reference: True Survey Calculation Method: Minimum Curvature Database: EDM .16 - Anc Prod - WH24P Survey ; i Measured Vertical Map Map Depth Inclination Azimuth Depth +N/S +E/-W Northing Fasting (ft) r (°) (°) (tt) (it) (ft) (ft) ('ft) Latitude Longitude 4,939.47 0.08 159.60 4,939.10 0.51 -20.50 5,975,524.05 671,351.47 70° 20' 20.442 N 148° 36' 34.201 W 4,954.47 0.12 178.61 4,954.10 0.48 -20.50 5,975,524.02 671,351.48 70° 20' 20.441 N 148° 36' 34.201 W 4,969.47 0.17 194.76 4,969.10 0.45 -20.51 5,975,523.98 671,351.47 70° 20' 20.441 N 148° 36' 34.201 W 4,984.37 0.23 203.46 4,984.00 0.40 -20.52 5,975,523.94 671,351.46 70° 20' 20.441 N 148° 36' 34.201 W 999.37 4 0.35 206.94 4,999.00 0.33 -20.56 5,975,523.87 671,351.43 70° 20' 20.440 N 148° 36' 34.202 W i , 5,014.37 0.52 207.26 5,014.00 0.23 -20.61 5,975,523.76 671,351.38 70° 20' 20.439 N 148° 36' 34.204 W 5,029.37 0.78 205.22 5,029.00 0.07 -20.68 5,975,523.61 671,351.31 70° 20' 20.437 N 148° 36' 34.206 W I, 5,044.37 1.20 200.65 5,044.00 -0.16 -20.78 5,975,523.37 671,351.21 70° 20' 20.435 N 148° 36' 34.209 W 5,059.37 1.78 195.79 5,058.99 -0.54 -20.90 5,975,522.99 671,351.10 70° 20' 20.431 N 148° 36' 34.212 W 5,074.37 2.42 191.70 5,073.98 -1.07 -21.03 5,975,522.46 671,350.99 70° 20' 20.426 N 148° 36' 34.216 W 5,089.37 3.02 187.41 5,088.96 -1.77 -21.14 5,975,521.75 671,350.89 70° 20' 20.419 N 148° 36' 34.220 W 5,104.37 3.63 184.41 5,103.94 -2.64 -21.23 5,975,520.89 671,350.82 70° 20' 20.411 N 148° 36' 34.222 W 5,119.37 4.25 183.37 5,118.90 -3.67 -21.30 5,975,519.86 671,350.77 70° 20' 20.401 N 148° 36' 34.224 W 5,134.47 4.82 182.64 5,133.96 -4.86 -21.36 5,975,518.66 671,350.74 70° 20' 20.389 N 148° 36' 34.226 W 5,149.47 5.37 182.11 5,148.90 -6.19 -21.42 5,975,517.33 671,350.72 70° 20' 20.376 N 148° 36' 34.228 W ~ 5,164.47 5.93 182.22 5,163.82 -7.66 -21.47 5,975,515.85 671,350.69 70° 20' 20.361 N 148° 36' 34.229 W 5,179.37 6.52 182.79 5,178.64 -9.28 -21.54 5,975,514.24 671,350.66 70° 20' 20.345 N 148° 36' 34.231 W 5,194.37 7.08 183.27 5,193.53 -11.05 -21.64 5,975,512.46 671,350.61 70° 20' 20.328 N 148° 36' 34.234 W ~ 5,209.37 7.65 183.41 5,208.41 -12.97 -21.75 5,975,510.54 671,350.54 70° 20' 20.309 N 148° 36' 34.237 W 5,224.37 8.20 183.60 5,223.26 -15.04 -21.88 5,975,508.48 671,350.46 70° 20' 20.289 N 148° 36' 34.241 W 5,239.47 8.80 183.94 5,238.20 -17.26 -22.02 5,975,506.25 671,350.36 70° 20' 20.267 N 148° 36' 34.245 W 5,254.47 9.48 184.31 5,253.01 -19.64 -22.20 5,975,503.87 671,350.24 70° 20' 20.244 N 148° 36' 34.250 W 5,269.57 10.17 184.49 5,267.88 -22.21 -22.39 5,975,501.29 671,350.11 70° 20' 20.218 N 148° 36' 34.256 W ~ 5,284.57 10.78 184.51 5,282.63 -24.93 -22.61 5,975,498.57 671,349.95 70° 20' 20.192 N 148° 36' 34.262 W' 5,299.57 11.32 184.65 5,297.36 -27.79 -22.84 5,975,495.70 671,349.79 70° 20' 20.163 N 148° 36' 34.269 W 5,314.17 11.80 184.99 5,311.66 -30.71 -23.08 5,975,492.78 671,349.61 70° 20' 20.135 N 148° 36' 34.276 W 5,333.77 12.57 185.49 5,330.82 -34.83 -23.46 5,975,488.65 671,349.33 70° 20' 20.094 N 148° 36' 34.287 W 5,359.77 13.43 185.83 5,356.15 -40.65 -24.04 5,975,482.82 671,348.88 70° 20' 20.037 N 148° 36' 34.304 W 5,389.27 13.98 186.16 5,384.81 -47.60 -24.77 5,975,475.86 671,348.31 70° 20' 19.969 N 148° 36' 34.325 W ~ 5,423.17 14.57 186.70 5,417.66 -55.91 -25.71 5,975,467.53 671,347.56 70° 20' 19.887 N 148° 36' 34.353 W 5,457.67 15.30 187.10 5,451.00 -64.73 -26.77 5,975,458.68 671,346.70 70° 20' 19.800 N 148° 36' 34.384 W ~' 5,491.87 16.13 187.39 5,483.92 -73.92 -27.94 5,975,449.47 671,345.74 70° 20' 19.710 N 148° 36' 34.418 W 5,525.97 16.87 188.17 5,516.62 -83.52 -29.26 5,975,439.85 671,344.65 70° 20' 19.615 N 148° 36' 34.456 W 5,559.97 17.57 189.71 5,549.09 -93.46 -30.82 5,975,429.88 671,343.31 70° 20' 19.518 N 148° 36' 34.502 W 5,594.17 18.30 191.32 5,581.63 -103.81 -32.75 5,975,419.48 671,341.62 70° 20' 19.416 N 148° 36' 34.558 W 5,628.27 18.93 192.26 5,613.95 -114.47 -34.97 5,975,408.78 671,339.64 70° 20' 19.311 N 148° 36' 34.623 W 5,662.37 19.42 192.68 5,646.15 -125.40 -37.39 5,975,397.79 671,337.47 70° 20' 19.203 N 148° 36' 34.694 W j 5,696.37 19.82 192.87 5,678.18 -136.54 -39.92 5,975,386.60 671,335.20 70° 20' 19.094 N 148° 36' 34.768 W 5,730.47 20.20 192.95 5,710.22 -147.91 -42.52 5,975,375.17 671,332.85 70° 20' 18.982 N 148° 36' 34.844 W 5,764.57 20.50 193.04 5,742.19 -159.46 -45.19 5,975,363.56 671,330.45 70° 20' 18.868 N 148° 36' 34.922 W 5,798.67 20.82 193.03 5,774.10 -171.18 -47.90 5,975,351.78 671,328.01 70° 20' 18.753 N 148° 36' 35.001 W 5,832.77 21.13 192.92 5,805.94 -183.08 -50.64 5,975,339.83 671,325.54 70° 20' 18.636 N 148° 36' 35.081 W 5,866.87 21.45 192.93 5,837.71 -195.15 -53.41 5,975,327.70 671,323.05 70° 20' 18.517 N 148° 36' 35.162 W 5,900.97 21.77 192.91 5,869.42 -207.39 -56.22 5,975,315.40 671,320.52 70° 20' 18.397 N 148° 36' 35.244 W 5,935.07 22.02 192.81 5,901.06 -219.78 -59.05 5,975,302.94 671,317.97 70° 20' 18.275 N 148° 36' 35.327 W 5,969.07 22.33 192.75 5,932.54 -232.30 -61.89 5,975,290.37 671,315.42 70° 20' 18.152 N 148° 36' 35.410 W 6,003.17 22.72 192.72 5,964.04 -245.04 -64.77 5,975,277.57 671,312.84 70° 20' 18.027 N 148° 36' 35.494 W 6,037.67 23.17 192.71 5,995.81 -258.16 -67.73 5,975,264.38 671,310.18 70° 20' 17.898 N 148° 36' 35.580 W 072.17 6 23.67 192.74 6,027.47 -271.54 -70.75 5,975,250.94 671,307.46 70° 20' 17.766 N 148° 36' 35.668 W; , 6,106.77 24.12 192.81 6,059.10 -285.21 -73.85 5,975,237.21 671,304.68 70° 20' 17.632 N 148° 36' 35.759 W it 6,141.27 24.48 192.88 6,090.55 -299.05 -77.01 5,975,223.30 671,301.84 70° 20' 17.496 N 148° 36' 35.851 W ~ 6,175.27 25.02 192.80 6,121.42 -312.93 -80.17 5,975,209.35 671,298.99 70° 20' 17.359 N 148° 36' 35.943 W 6,209.27 25.67 192.66 6,152.15 -327.12 -83.38 5,975,195.09 671,296.11 70° 20' 17.220 N 148° 36' 36.037 W 6,243.27 26.18 192.55 6,182.73 -341.63 -86.62 5,975,180.51 671,293.20 70° 20' 17.077 N 148° 36' 36.132 W 6,277.37 26.65 192.45 6,213.27 -356.44 -89.90 5,975,165.63 671,290.26 70° 20' 16.931 N 148° 36' 36.228 W 5/182010 3:35:09PM Page 9 COMPASS 2003.16 Build 71 Survey Report -Geographic Company: North America -ALASKA - BP Local Co-ordinate Reference: Weil K-12_DIMS Project: Prudhoe Bay ND Reference:. K-12B @ 57.46ft (Doyon 14) Ske: PB K Pad MD Reference:. K-12B @ 57.46ft (Doyon 14) Well: K-12 DIMS North Reference: True Weflbore: K-12B Survey Calculation Method: Minimum Curvature Design:. K-12B Database: EDM .16 - Anc Prod - WH24P Survey Measured. Vertical Map Map i Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (R) Latitude Longitude 6,311.47 27.18 192.37 6,243.67 -371.51 -93.22 5,975,150.48 671,287.28 70° 20' 16.783 N 148° 36' 36.325 W 6,345.47 27.72 192.28 6,273.85 -386.83 -96.57 5,975,135.10 671,284.29 70° 20' 16.632 N 148° 36' 36.422 W 6,379.47 28.13 192.16 6,303.89 -402.39 -99.94 5,975,119.47 671,281.28 70° 20' 16.479 N 148° 36' 36.521 W 6,413.47 28.25 192.07 6,333.85 -418.09 -103.31 5,975,103.69 671,278.27 70° 20' 16.325 N 148° 36' 36.619 W 6,447.47 28.15 192.01 6,363.82 -433.81 -106.66 5,975,087.91 671,275.27 70° 20' 16.170 N 148° 36' 36.717 W: 6,481.47 28.05 191.92 6,393.81 -449.47 -109.98 5,975,072.17 671,272.31 70° 20' 16.016 N 148° 36' 36.814 W ~ 6,515.57 27.98 191.80 6,423.92 -465.15 -113.27 5,975,056.42 671,269.38 70° 20' 15.862 N ' 148° 36' 36.910 W 6,549.67 27.88 191.75 6,454.04 -480.78 -116.53 5,975,040.72 671,266.48 70° 20' 15.708 N 148° 36' 37.005 W 6,583.67 27.77 191.64 6,484.11 -496.32 -119.75 5,975,025.11 671,263.62 70° 20' 15.555 N 148° 36' 37.099 W 6,617.77 27.70 191.55 6,514.29 -511.87 -122.94 5,975,009.50 671,260.79 70° 20' 15.403 N 148° 36' 37.192 W 6,651.97 27.63 191.51 6,544.58 -527.43 -126.11 5,974,993.87 671,257.97 70° 20' 15.250 N 148° 36' 37.285 W 6,686.07 27.48 191.42 6,574.82 -542.89 -129.25 5,974,978.34 671,255.19 70° 20' 15.097 N 148° 36' 37.377 W 6,720.17 27.35 191.42 6,605.09 -558.28 -132.35 5,974,962.89 671,252.43 70° 20' 14.946 N 148° 36' 37.468 W i 6,754.37 27.10 191.43 6,635.50 -573.61 -135.45 5,974,947.49 671,249.68 70° 20' 14.795 N 148° 36' 37.558 W' 6,788.37 26.80 191.43 6,665.81 -588.72 -138.51 5,974,932.32 671,246.98 70° 20' 14.647 N 148° 36' 37.647 W 6,822.77 26.57 191.40 6,696.54 -603.86 -141.57 5,974,917.11 671,244.27 70° 20' 14.498 N 148° 36' 37.737 W 6,856.97 26.43 191.35 6,727.15 -618.82 -144.57 5,974,902.09 671,241.60 70° 20' 14.351 N 148° 36' 37.824 W 6,891.17 26.30 191.29 6,757.79 -633.71 -147.56 5,974,887.13 671,238.96 70° 20' 14.204 N 148° 36' 37.911 W 6,925.37 26.12 191.21 6,788.47 -648.53 -150.50 5,974,872.25 671,236.35 70° 20' 14.059 N 148° 36' 37.998 W 6,959.57 25.90 191.18 6,819.21 -663.24 -153.41 5,974,857.48 671,233.78 70° 20' 13.914 N 148° 36' 38.083 W 6,993.87 25.67 191.13 6,850.10 -677.88 -156.30 5,974,842.78 671,231.23 70° 20' 13.770 N 148° 36' 38.167 W 7,028.07 25.45 191.11 6,880.95 -692.36 -159.15 5,974,828.24 671,228.71 70° 20' 13.627 N 148° 36' 38.250 W 7,062.37 25.23 191.08 6,911.95 -706.76 -161.97 5,974,813.77 671,226.22 70° 20' 13.486 N 148° 36' 38.332 W 7,096.67 25.03 191.01 6,943.00 -721.06 -164.76 5,974,799.42 671,223.75 70° 20' 13.345 N 148° 36' 38.414 W 7,130.97 24.75 191.09 6,974.12 -735.23 -167.53 5,974,785.19 671,221.31 70° 20' 13.206 N 148° 36' 38.495 W 7,165.17 24.50 191.21 7,005.21 -749.21 -170.29 5,974,771.15 671,218.88 70° 20' 13.068 N 148° 36' 38.575 W 7,199.37 24.32 191.16 7,036.35 -763.07 -173.03 5,974,757.23 671,216.45 70° 20' 12.932 N 148° 36' 38.655 W 7,233.57 24.20 191.16 7,067.53 -776.86 -175.75 5,974,743.38 671,214.05 70° 20' 12.796 N 148° 36' 38.735 W 7,267.77 24.15 191.26 7,098.73 -790.60 -178.47 5,974,729.59 671,211.64 70° 20' 12.661 N 148° 36' 38.814 W 7,301.97 24.13 191.27 7,129.94 -804.32 -181.20 5,974,715.81 671,209.22 70° 20' 12.526 N 148° 36' 38.894 W 7,336.17 24.12 191.27 7,161.15 -818.03 -183.93 5,974,702.05 671,206.81 70° 20' 12.392 N 148° 36' 38.974 W 7,370.37 24.00 191.23 7,192.38 -831.70 -186.65 5,974,688.31 671,204.40 70° 20' 12.257 N 148° 36' 39.053 W 7,404.57 23.82 191.22 7,223.64 -845.30 -189.35 5,974,674.66 671,202.01 70° 20' 12.123 N 148° 36' 39.132 W 7,438.77 23.60 191.21 7,254.96 -858.79 -192.03 5,974,661.11 671,199.65 70° 20' 11.991 N 148° 36' 39.210 W, 7,472.97 23.32 191.17 7,286.33 -872.14 -194.67 5,974,647.70 671,197.31 70° 20' 11.859 N 148° 36' 39.287 W' 7,506.77 23.00 191.21 7,317.41 -885.18 -197.25 5,974,634.61 671,195.03 70° 20' 11.731 N 148° 36' 39.363 W 7,540.37 22.73 191.27 7,348.37 -897.99 -199.79 5,974,621.75 671,192.78 70° 20' 11.605 N 148° 36' 39.437 W 7,573.87 22.50 191.36 7,379.29 -910.62 -202.32 5,974,609.06 671,190.54 70° 20' 11.481 N 148° 36' 39.511 W 7,607.47 22.23 191.45 7,410.36 -923.15 -204.85 5,974,596.48 671,188.30 70° 20' 11.358 N 148° 36' 39.585 W , 7,641.07 22.00 191.51 7,441.49 -935.55 -207.37 5,974,584.03 671,186.07 70° 20' 11.236 N 148° 36' 39.658 W 7,674.57 21.77 191.57 7,472.58 -947.78 -209.86 5,974,571.74 671,183.85 70° 20' 11.115 N 148° 36' 39.731 W 7,708.27 21.48 191.53 7,503.91 -959.95 -212.35 5,974,559.52 671,181.64 70° 20' 10.996 N 148° 36' 39.804 W 7,741.77 21.22 191.47 7,535.11 -971.90 -214.78 5,974,547.51 671,179.48 70° 20' 10.878 N 148° 36' 39.875 W I~ 7,775.37 20.95 191.43 7,566.46 -983.75 -217.18 5,974,535.62 671,177.36 70° 20' 10.762 N 148° 36' 39.945 W 7,809.07 20.70 191.47 7,597.95 -995.49 -219.56 5,974,523.82 671,175.25 70° 20' 10.646 N 148° 36' 40.014 W 7,842.67 20.53 191.73 7,629.40 -1,007.08 -221.94 5,974,512.18 671,173.13 70° 20' 10.532 N 148° 36' 40.084 W 7,876.37 20.37 191.95 7,660.98 -1,018.60 -224.35 5,974,500.61 671,170.98 70° 20' 10.419 N 148° 36' 40.154 W 7,910.07 20.22 192.09 7,692.59 -1,030.04 -226.79 5,974,489.12 671,168.81 70° 20' 10.306 N 148° 36' 40.225 W 7,943.77 20.02 192.36 7,724.23 -1,041.37 -229.24 5,974,477.74 671,166.61 70° 20' 10.195 N 148° 36' 40.297 W 7,977.47 19.75 192.60 7,755.92 -1,052.56 -231.72 5,974,466.50 671,164.39 70° 20' 10.085 N 148° 36' 40.369 W 8,011.17 19.47 192.67 7,787.67 -1,063.59 -234.19 5,974,455.41 671,162.17 70° 20' 9.976 N 148° 36' 40.441 W 8,044.77 19.18 192.73 7,819.37 -1,074.44 -236.64 5,974,444.51 671,159.98 70° 20' 9.870 N 148° 36' 40.513 W 8,078.47 18.98 192.79 7,851.22 -1,085.19 -239.07 5,974,433.71 671,157.79 70° 20' 9.764 N 148° 36' 40.584 W 8,112.17 19.02 192.90 7,883.09 -1,095.88 -241.51 5,974,422.96 671,155.60 70° 20' 9.659 N 148° 36' 40.655 W 8,125.00 19.12 192.95 7,895.21 -1,099.97 -242.45 5,974,418.86 671,154.75 - 70° 20' 9.619 N 148° 36' 40.682 W __ 5/18/2010 3:35:09PM Page 10 COMPASS 2003.16 Build 71 • Survey Report -Geographic Company: North America -ALASKA - BP .Project: Prudhoe Bay Site: PB K Pad Well: K-12_DIMS Wellbore: K-12B Design: K-126 Local Co-ordinate Reference: ND Reference: MD Reference: North Reference• Survey Calculation Method: Database: Well K-12 DIMS K-126 @ 57.46ft (Doyon 14) K-126 ~ 57.46ft (Doyon 14) True Minimum Curvature EDM .16 - Anc Prod - WH24P Survey Measured Vertical Map Map Depth. Inclination Azimuth Depth +N/-g +E/-W Northing Fasting (ft) (°) (°) lit) (it) (ft) 1~) (~) Latitude Longitude 8,152.15 19.99 197.26 7,920.80 -1,108.73 -244.82 5,974,410.04 671,152.58 70° 20' 9.532 N 148° 36' 40.752 W 8,181.42 19.48 201.99 7,948.35 -1,118.04 -248.13 5,974,400.66 671,149.48 70° 20' 9.441 N 148° 36' 40.848 W 8,208.15 19.22 206.33 7,973.57 -1,126.11 -251.76 5,974,392.51 671,146.05 70° 20' 9.361 N 148° 36' 40.954 W, I 8,243.67 18.92 212.07 8,007.14 -1,136.24 -257.41 5,974,382.26 671,140.63 70° 20' 9.262 N 148° 36' 41.119 W ~~ 8,274.98 18.82 222.68 8,036.78 -1,144.25 -263.53 5,974,374.11 671,134.69 70° 20' 9.183 N 148° 36' 41.298 W I 8,296.16 18.72 230.83 8,056.84 -1,148.91 -268.48 5,974,369.34 671,129.85 70° 20' 9.137 N 148° 36' 41.443 W ~ 8,394.03 17.11 233.02 8,149.96 -1,167.49 -292.16 5,974,350.22 671,106.60 70° 20' 8.954 N 148° 36' 42.134 W ~ 8,467.13 17.55 242.17 8,219.76 -1,179.11 -310.50 5,974,338.19 671,088.54 70° 20' 8.840 N 148° 36' 42.670 W 8,495.41 17.56 245.77 8,246.72 -1,182.85 -318.16 5,974,334.27 671,080.96 70° 20' 8.803 N 148° 36' 42.893 W 8,529.35 17.69 246.80 8,279.07 -1,186.98 -327.57 5,974,329.93 671,071.65 70° 20' 8.763 N 148° 36' 43.168 W 8,560.19 18.03 252.51 8,308.42 -1,190.26 -336.43 5,974,326.45 671,062.87 70° 20' 8.731 N 148° 36' 43.427 W 8,587.08 18.55 257.42 8,333.95 -1,192.45 -344.57 5,974,324.08 671,054.78 70° 20' 8.709 N 148° 36' 43.665 W ~ 8,622.32 19.30 264.09 8,367.29 -1,194.27 -355.84 5,974,322.00 671,043.56 70° 20' 8.691 N 148° 36' 43.994 W 8,645.00 19.83 266.87 8,388.66 -1,194.86 -363.41 5,974,321.23 671,036.00 70° 20' 8.685 N 148° 36' 44.215 W ~ 8,669.87 19.83 267.85 8,412.06 -1,195.25 -371.83 5,974,320.65 671,027.59 70° 20' 8.681 N 148° 36' 44.461 W 8,708.44 20.09 269.34 8,448.31 -1,195.57 -384.99 5,974,320.03 671,014.44 70° 20' 8.678 N 148° 36' 44.845 W 737.27 8 19.82 277.43 8,475.42 -1,195.00 -394.79 5,974,320.38 671,004.63 70° 20' 8.684 N 148° 36' 45.131 W , 8,763.14 18.68 288.27 8,499.85 -1,193.13 -403.08 5,974,322.06 670,996.30 70° 20' 8.702 N 148° 36' 45.373 W 8,800.83 17.16 305.86 8,535.74 -1,187.98 -413.33 5,974,326.97 670,985.94 70° 20' 8.753 N 148° 36' 45.673 W 8,829.36 17.03 316.62 8,563.01 -1,182.47 -419.61 5,974,332.33 670,979.54 70° 20' 8.807 N 148° 36' 45.856 W 8,860.08 17.59 328.26 8,592.35 -1,175.25 -425.14 5,974,339.42 670,973.84 70° 20' 8.878 N 148° 36' 46.018 W 8,895.68 20.51 341.92 8,626.01 -1,164.74 -429.91 5,974,349.82 670,968.83 70° 20' 8.981 N 148° 36' 46.157 W ~ iI 8,922.34 22.54 350.87 8,650.82 -1,155.26 -432.17 5,974,359.25 670,966.36 70° 20' 9.075 N 148° 36' 46.223 W 8,950.43 24.13 355.85 8,676.61 -1,144.21 -433.44 5,974,370.27 670,964.83 70° 20' 9.183 N 148° 36' 46.260 W 8,991.90 27.57 5.29 8,713.94 -1,126.19 -433.17 5,974,388.29 670,964.69 70° 20' 9.361 N 148° 36' 46.252 W 9,024.25 30.94 13.28 8,742.17 -1,110.63 -430.57 5,974,403.90 670,966.94 70° 20' 9.514 N 148° 36' 46.176 W 9,050.24 33.45 16.77 8,764.17 -1,097.26 -426.96 5,974,417.34 670,970.24 70° 20' 9.645 N 148° 36' 46.071 W 9,081.51 37.95 20.83 8,789.56 -1,080.02 -421.06 5,974,434.72 670,975.75 70° 20' 9.815 N 148° 36' 45.899 W 9,114.95 41.03 23.52 8,815.37 -1,060.33 -413.02 5,974,454.58 670,983.34 70° 20' 10.008 N 148° 36' 45.664 W 9,142.44 43.83 26.04 8;835.65 -1,043.50 -405.23 5,974,471.58 670,990.73 70° 20' 10.174 N 148° 36' 45.437 W 9,183.94 46.67 29.00 8,864.87 -1,017.38 -391.60 5,974,498.01 671,003.76 70° 20' 10.431 N 148° 36' 45.039 W i 9,207.56 49.39 30.63 8,880.67 -1,002.15 -382.87 5,974,513.43 671,012.14 70° 20' 10.581 N 148° 36' 44.783 W ' 9 238.45 52.83 32.16 8 900.06 -981.64 -370.34 5,974,534.23 671,024.20 70° 20' 10.782 N 148° 36' 44.418 W i , 9,274.65 57.75 32.52 , 8,920.66 -956.50 -354.42 5,974,559.72 671,039.54 70° 20' 11.030 N 148° 36' 43.953 W 9,306.87 62.86 32.69 8,936.62 -932.93 -339.35 5,974,583.62 671,054.07 70° 20' 11.261 N 148° 36' 43.513 W 9,337.79 68.26 32.31 8,949.41 -909.20 -324.23 5,974,607.69 671,068.64 70° 20' 11.495 N 148° 36' 43.071 W' 9,367.65 73.10 32.79 8,959.28 -885.46 -309.07 5,974,631.78 671,083.25 70° 20' 11.728 N 148° 36' 42.628 W 9,399.75 78.82 33.44 8,967.07 -859.39 -292.06 5,974,658.23 671,099.66 70° 20' 11.985 N 148° 36' 42.132 W 9,435.57 84.37 34.36 8,972.30 -829.99 -272.31 5,974,688.07 671,118.74 70° 20' 12.274 N 148° 36' 41.555 W 9,466.24 89.81 35.63 8,973.86 -804.91 -254.75 5,974,713.54 671,135.72 70° 20' 12.521 N 148° 36' 41.042 W 9,489.01 93.03 37.96 8,973.30 -786.68 -241.11 5,974,732.07 671,148.93 70° 20' 12.700 N 148° 36' 40.644 W 9,521.50 95.63 37.36 8,970.84 -761.04 -221.32 5,974,758.16 671,168.13 70° 20' 12.952 N 148° 36' 40.066 W 9,550.70 99.80 38.64 8,966.92 -738.24 -203.51 5,974,781.36 671,185.41 70° 20' 13.176 N 148° 36' 39.546 W i 9,585.26 101.30 44.26 8,960.59 -712.78 -181.04 5,974,807.32 671,207.30 70° 20' 13.427 N i 148° 36' 38.889 W'. 617.95 9 101.25 48.31 8,954.20 -690.63 -157.87 5,974,829.99 671,229.95 70° 20' 13.644 N 148° 36' 38.213 W , ~ 9,642.14 100.80 51.14 8,949.57 -675.28 -139.76 5,974,845.75 671,247.71 70° 20' 13.795 N 148° 36' 37.684 W 9,679.20 100.62 54.35 8,942.68 -653.24 -110.78 5,974,868.45 671,276.17 70° 20' 14.012 N 148° 36' 36.837 W 9,709.44 99.49 57.34 8,937.40 -636.53 -86.14 5,974,885.72 671,300.42 70° 20' 14.177 N 148° 36' 36.118 W 9,742.49 99.24 58.07 8,932.02 -619.11 -58.57 5,974,903.76 671,327.58 70° 20' 14.348 N 148° 36' 35.313 W 9,769.30 98.93 58.31 8,927.79 -605.15 -36.08 5,974,918.23 671,349.75 70° 20' 14.485 N 148° 36' 34.656 W 9,800.56 98.81 55.83 8,922.97 -588.36 -10.15 5,974,935.60 671,375.28 70° 20' 14.650 N 148° 36' 33.899 W ~ 9,829.68 99.99 54.91 8,918.21 -572.04 13.48 5,974,952.46 671,398.54 70° 20' 14.811 N 148° 36' 33.208 W 9,866.81 99.49 53.61 8,911.93 -550.66 43.19 5,974,974.51 671,427.74 70° 20' 15.021 N 148° 36' 32.341 W ~, 9,897.02 99.86 52.06 8,906.85 -532.67 66.92 5,974,993.04 671,451.05 70° 20' 15.198 N 148° 36' 31.648 W ~ 9.923.86 99.11 50.25 8,902.43 -516.07 87.53 5,975,010.11 671,471.28 70° 20' 15.361 N 148° 36' 31.045 W 5/18/2010 3:35:09PM Page 11 COMPASS 2003.16 Build 71 • ~ • Survey Report -Geographic Company:.... Project:. Site: Well: Wellbore: Design:, North America -ALASKA - BP Prudhoe Bay PB K Pad K-12 DIMS K-12B K-12B Local Co-ordinate Reference: Well K-12_DIMS TVD Reference: K-126 @ 57.46ft (Doyon 14) MD Reference:. K-12B @ 57.46ft (Doyon 14) North Reference: True Survey Calculation Method: Minimum Curvature Database: EDM .16 - Anc Prod - WH24P I survey Measured Vertical Map Map Depth. Inclination Azimuth Depth +N/-$ +E/.W Northing Easting (ft) (°) (°) (~) t'R) (ft) (~) (~) Latitude Longitude 9,963.78 98.61 48.42 8,896.28 -490.37 117.45 5,975,036.48 671,500.60 70° 20' 15.614 N 148° 36' 30.172 W 9,996.33 96.56 47.01 8,891.98 -468.66 141.32 5,975,058.73 671,523.97 70° 20' 15.827 N 148° 36' 29.474 W 10,020.26 94.02 47.23 8,889.78 -452.45 158.78 5,975,075.34 671,541.05 70° 20' 15.987 N 148° 36' 28.965 W 10,056.02 94.26 45.68 8,887.20 -427.88 184.63 5,975,100.49 671,566.33 70° 20' 16.229 N 148° 36' 28.209 W 10,088.87 94.33 43.73 8,884.74 -404.60 207.67 5,975,124.29 671,588.84 70° 20' 16.458 N 148° 36' 27.536 W i 10,120.92 94.07 41.30 8,882.39 -381.04 229.27 5,975,148.33 671,609.89 70° 20' 16.689 N 148° 36' 26.906 W 10,145.92 94.39 39.09 8,880.54 -361.99 245.36 5,975,167.74 671,625.54 70° 20' 16.877 N 148° 36' 26.436 W 10,184.04 93.34 36.40 8,877.97 -331.92 268.64 5,975,198.33 671,648.12 70° 20' 17.172 N 148° 36' 25.756 W ~~ 10,215.13 93.15 34.10 8,876.21 -306.58 286.55 5,975,224.08 671,665.45 70° 20' 17.422 N 148° 36' 25.232 W 10,247.00 95.55 31.25 8,873.80 -279.83 303.71 5,975,251.21 671,681.99 70° 20' 17.685 N 148° 36' 24.731 W 10,273.03 95.99 30.89 8,871.18 -257.65 317.07 5,975,273.69 671,694.84 70° 20' 17.903 N 148° 36' 24.341 W 10,303.29 96.18 31.11 8,867.97 -231.86 332.57 5,975,299.83 671,709.75 70° 20' 18.156 N 148° 36' 23.888 W 10,338.94 94.33 32.28 8,864.71 -201.65 351.22 5,975,330.45 671,727.70 70° 20' 18.453 N 148° 36' 23.344 W 10,368.91 94.76 32.84 8,862.33 -176.47 367.30 5,975,355.98 671,743.20 70° 20' 18.701 N 148° 36' 22.874 W 10,394.40 95.75 32.49 8,860.00 -155.11 381.00 5,975,377.66 671,756.40 70° 20' 18.911 N 148° 36' 22.474 W 10,432.11 95.50 30.96 8,856.30 -123.19 400.73 5,975,410.02 671,775.40 70° 20' 19.225 N 148° 36' 21.897 W 10,468.38 95.87 30.85 8,852.71 -92.22 419.27 5,975,441.40 671,793.23 70° 20' 19.530 N 148° 36' 21.356 W 10,492.43 95.88 30.98 8,850.25 -71.69 431.56 5,975,462.20 671,805.04 70° 20' 19.732 N 148° 36'20.997 W 10,533.46 94.70 32.24 8,846.46 -36.90 452.98 5,975,497.47 671,825.65 70° 20' 20.074 N 148° 36' 20.371 W 10,562.28 94.76 32.16 8,844.09 -12.60 468.28 5,975,522.12 671,840.40 70° 20' 20.313 N 148° 36' 19.924 W 10,585.55 93.58 32.67 8,842.39 6.99 480.72 5,975,541.99 671,852.39 70° 20' 20.505 N 148° 36' 19.561 W 10,678.51 92.72 32.93 8,837.29 85.01 531.00 5,975,621.13 671,900.87 70° 20' 21.273 N 148° 36' 18.092 W 10,688.09 92.47 33.10 8,836.85 93.04 536.22 5,975,629.27 671,905.90 70° 20' 21.352 N 148° 36' 17.940 W 10,780.60 93.21 33.66 8,832.27 170.19 587.05 5,975,707.56 671,954.95 70° 20' 22.110 N 148° 36' 16.455 W 10,876.53 91.42 33.73 8,828.39 249.94 640.23 5,975,788.50 672,006.29 70° 20' 22.895 N 148° 36' 14.901 W 10,963.00 91.72 34.01 8,826.03 321.71 688.40 5,975,861.34 672,052.80 70° 20' 23.600 N 148° 36' 13.494 W 11,062.55 92.22 32.74 8,822.60 404.79 743.13 5,975,945.65 672,105.62 70° 20' 24.417 N 148° 36' 11.895 W 11,128.33 93.76 30.62 8,819.17 460.69 777.62 5,976,002.31 672,138.83 70° 20' 24.967 N 148° 36' 10.887 W 11,161.71 94.51 28.95 8,816.76 489.58 794.16 5,976,031.58 672,154.70 70° 20' 25.251 N 148° 36' 10.404 W 11,258.43 94.88 29.80 8,808.85 573.58 841.45 5,976,116.63 672,200.05 70° 20' 26.077 N 148° 36' 9.023 W 11,305.00 94.88 29.80 8,804.89 613.85 864.51 5,976,157.41 672,222.18 70° 20' 26.473 N 148° 36' 8.349 W 5/18/2010 3:35:09PM Page 12 COMPASS 2003. i6 Build 71 M Survey Report -Geographic Company: North America -ALASKA - BP Project: Prudhoe Bay Site: PB K Pad Well: K-12_DIMS Wellbore: K-126 Design: K-12B Targets. Local Co-ordinate Reference: ND Reference: MD Reference: North Reference: Survey Calculation Method: Database: Target Name - hit/miss target Dip Angle Dip Dir. TVD +N/S +E/-W -Shape (°) 1°I (~) Ift) (~l Well K-12 DIMS K-12B @ 57.46ft (Doyon 14) K-126 @ 57.46ft (Doyon 14) True Minimum Curvature EDM .16 - Anc Prod - WH24P Northing Fasting 1~1 Iftl K-126 Poly 0.00 0.00 8,931.46 -840.12 -182.24 5,974,680.00 671,209.00 -actual wellpath misses target center by 89.75ft at 9482.52ft MD (8973.59 TVD, -791.82 N, -245.08 E) - Polygon Point 1 8,931.46 827.75 810.20 5,976,370.00 672,163.00 Point2 8,931.46 631.00 1,058.79 5,976,179.00 672,416.00 Point 3 8,931.46 -357.30 445.00 5,975,177.00 671,825.00 Point 4 8,931.46 -1,047.16 -95.94 5,974,475.00 671,300.00 Point 5 8,931.46 -791.63 -378.20 5,974,724.00 671,012.00 Point 6 8,931.46 -205.11 176.39 5,975,323.00 671,553.00 K-126 Flt 3 8900ss 0.00 0.00 8,957.46 1,088.22 -169.17 5,976,608.00 671,178.00 - actual wellpath misses target center by 1142.09ft at 11199.16ft MD (8813.77 TVD, 522.20 N, 812.33 E) - Polygon Point 1 8,957.46 1,088.22 -169.17 5,976,608.00 671,178.00 Point 2 8,957.46 829.78 1,290.40 5,976,383.00 672,643.00 K-126 Flt 4 8900ss 0.00 0.00 8,957.46 853.19 1,228.92 5,976,405.00 672,581.00 - actual wellpath misses target center by 461.91ft at 11305.OOft MD (8804.89 TVD, 613.85 N, 864.51 E) - Polygon Point 1 8,957.46 853.19 1,228.92 5,976,405.00 672,581.00 Point 2 8,957.46 -17.56 1,293.04 5,975,536.00 672,665.00 K-12B Flt 1 8900ss 0.00 0.00 8,957.46 97.55 -591.95 5,975,608.00 670,778.00 - actual wellpath misses target center by 891.47ft at 9699.56ft MD (8939.06 TVD, -641.85 N, -94.29 E) -Polygon Point 1 8,957.46 97.55 -591.95 5,975,608.00 670,778.00 Point 2 8,957.46 -339.59 64.27 5,975,186.00 671,444.00 Point 3 8,957.46 -888.55 579.90 5,974,649.00 671,972.00 Point4 8,957.46 -339.59 64.27 5,975,186.00 671,444.00 K-12B Flt 2 8900ss 0.00 0.00 8,957.46 162.17 125.76 5,975,689.00 671,494.00 -actual wellpath misses target center by 398.52ft at 10521.26ft MD (8847.50 TVD, -47.20 N, 446.53 E) - Polygon Point 1 8,957.46 162.17 125.76 5,975,689.00 671,494.00 Point 2 8,957.46 -77.00 348.37 5,975,455.00 671,722.00 Point 3 8,957.46 -242.62 635.68 5,975,296.00 672,013.00 Point 4 8,957.46 -605.54 889.47 5,974,939.00 672,275.00 Point 5 8,957.46 -242.62 635.68 5,975,296.00 672,013.00 Point 6 8,957.46 -77.00 348.37 5,975,455.00 671,722.00 Casing Points Measun:d vertical Depth Depth. 1~j , Iftl 2,695.67 2,695.32 13 3/8" 8,671.11 8,413.23 DRILLING LINER 1 11,303.00 8,805.06 PRODUCTION LINER 1 .Latitude Longitude 70° 20' 12.174 N 148° 36' 38.924 W 70° 20' 31.139 N 148° 36' 38.544 W 70° 20' 28.827 N 148° 35' 57.703 W 70° 20' 21.396 N 148° 36' 50.892 W 70° 20' 22.032 N 148° 36' 29.929 W ..Casing Hole Diameter Diameter Name (in) (i~? 13.375 17.500 7.000 8.500 4.500 6.000 Checked By: Approved By: Date: 5/18/2010 3:35:09PM Page 13 COMPASS 2003.16 Build 71 TREE = 41116,• CNV vv~LLNFt1D= AGTUATQR= __ C BAKERG __~ KB. ELEV = BF. Et_EV = - 24.9fi KOP = _ Max Angle~_..-... 8142' ~ ~. ~ , ~ ~~~ Datum hf~.l Datum TVD = 8aao' SS ~ K-128 13-31$" CSG, 72#. L-80, ID = 12.347" ~~ 2688' S E5; t J~ ~' ~.x r. 22I}7' ~--~ 41 !2" HES X NIP, ID = 3.813" GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 3065 3065 0 MMG DOME RK 16 05/23/10 3 5552 5542 17 MMG SO RK 20 05/23/10 2 7208 7044 24 MMG DMY RK 0 05/19/10 1 8282 8044 19 KGB-2 DMY BK 0 05/19/10 7~~~' }-19-5t8" X 7" BKFt ZX P LTP ~---~ w t FiNC LNR HGR, ID = 6.276" MILLOUT WINDOW (K-126) 8125' - 8142' 9-5/8° BOT VUH~'STgCK toy102t10) H 8142` ~8° EzsV PLUG (o5ro1110) ~ 8146' 112" TBG STUB (051i1uio) 8189` 8369' H4-1rz" HES X NIP ID 6:913•' 8394 7" X 4-1f2" HES TNT PKR~ ID = 3.856'• 9-5i8" CSG, 47#, L-80, ID = 8.681" ]-{ 9163' ~4-i/2" TBG, 12.6#, 't3CR-8S VAM TOP, .0152 bpf, ID = 3.958" 7" LNR, 26#, L-80 BTG~M, .0383 tapf, ID = 6.276" I 85{I8' I PERFORA-ftflN SUMMARY ANGLE AT TOP PERF: Nate: Refer to Production I78 for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-718" 6 9900-10940 q 05/17/10 2-7/8" 6 11010 - 11190 O 05!17/10 PBTD 11221' f2" LNR, 12.6#, L-80 IBBT, ,0152 bpf, ID = 3.95$" 11303" $425' ~4-112" HES X NIP ID = 3:813" 846' 41 t2" HES XN NIP, ID = 3.725" 8+~p' 7" X 5" BKR 2XP LTP. FLEX Lq HGR w /TIEBACK, ID = 4:440" 85i?8' 4-112" WVLEG. ID = 3.958„ 8526' S" X' 4-if2" XO, ID = 3.958" '' DATE REV BY COMMENTS DATE REV BY COMMENTS 12/26/87 ORIGINAL COMPLETION 01/14/01 CTU SIDETRACK 05/19/10 D-14 SIDETRACK (K-12B) 05/2211 fl PJC I~eu ~ r-~©cc~RREC-I-lar~s 05/31/10 RCT/PJC GLV C/O (05/23/10) PRUDHOE BAY UNff WELL: K-12B PERMff No: 2091430 API No: 5fl-029-21750-02-00 5EC 4; T11 N; R14E, 1695' FNL 8 1110` FWL BP Exploration (Alaska) ~,, ~'" ~ - ~ ~~ h ~~ ~ ~ ~' ~ SEAN PARNELL, GOVERNOR -~ a~ ALASKA OIL A~IZ' GAS ~~~ 333 W. 7th AVENUE, SUITE 100 COI~TSF;RQA'I`IO1~T COMl-IISSIOI~T ~ ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 us FAX (907) 276-7542 Mr. Greg Hobbs Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU K-12B BP Exploration (Alaska), Inc. Permit No: 209-143 Surface Location: 1695' FNL, 1110' FEL, SEC. 04, T11N, R14E, UM Bottomhole Location: 1046' FNL, 1995' FWL, SEC. 04, T11N, R14E, UM Dear Mr. Hobbs: Enclosed is the approved application for permit to re-drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659-3607 (pager). ' cerely, r Dan, . Seamount, Jr. ~` ~~ Commissioner DATED this / day of December, 2009 cc: Department of Fish 8s Game, Habitat Section w/o encl. Department of Environmental Conservation w/ o encl. STATE OF ALASKA ALASI~IL AND GAS CONSERVATION COMM~N PERMIT TO DRILL 20 AAC 25.005 /1,~9 1 a. Type of work: ^ Drill ®Redrill ^ Re-Entry 1 b. Proposed Well Class: ®Development Oil ^ Service - Winj ^ Single Zone ^ Stratigraphic Test ^Development Gas ^ Service -Supply ^ Multiple Zone ^ Exploratory ^ Service -WAG ^ Service - Disp 1 c. Specify if well is proposed for: ^ Coalbed Gas ^ Gas Hydrates ^ Shale Gas 2. Operator Name: BP Exploration (Alaska) Inc. 5. Bond: ®Blanket ^ Single Well Bond No. 6194193 11. Well Name and Number: PBU K-126 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Proposed Depth: MD 11307 T/D 8715 ss 12. Field /Pool(s): Prudhoe Bay Field / Prudhoe 4a. Location of Well (Governmental Section): Surfaces 169 ' FNL 1110' FWL T1 4E SEC 0 N R UM 7. Property Designation (Lease Number): ADL 028303 Bay Oil Pool 5 , , . 4, 1 , 1 , Top of Productive Horizon: 2054' FNL, 1359' FWL, SEC. 04, T11 N, R14E, UM 8. Land Use Permit: 13. Approximate Spud Date: December 25, 2009 Total Depth: 1046' FNL, 1995' FWL, SEC. 04, T11 N, R14E, UM 9. Acres in Property: 2560 14. Distance to Nearest Property: 11000' 4b. Location of Well (State Base Plane Coordinates - NAD 27): Surface: x- 671372 _5975524 Zone- ASP4 10. KB Elevation above MSL: 52.8' feet GL Elevation above MSL: 23.76' feet 15. Distance to Nearest Well Open to Same Pool: 950' 16. Deviated Wells: Kickoff Depth: 8065 feet Maximum Hole An le: 100 d Tees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole: 3300 Surface: 2412 18. Casin P ram:. S cifications To - Settin De th -Bottom Quant' of Cement c.f. or sacks Hole Casin We' ht Grade Cou lin Len th MD TVD MD TVD includin sta a data 8-1/2" 7" 2 L- T -11 747' 7 1 76 7' 8662' 4 3' 2 2 u CI ' 1/8" 4-1/2" 1 .6# -80 IBT-M 2795' 8 1 113 7' 8767' 3 7 u ft CI s 'G' 19. PRESENT WELL CON DITION S UMMARY (To be completed for Redrill and. Re-entry Operations). Total Depth MD (ft): 10950' Total Depth TVD (ft): 8952' Plugs (measured): 9005 & 10650' Effective Depth MD (ft): 10916' Effective Depth TVD (ft): 8955' Junk (measured): None `,Casin Length Size Cement Volume ` MD TVD Conductor /Structural 1 urfa 2 1' 1- /8" 1 u ft Arcti et I II T 2 7 u ft AS I 1' 1' In i - / " 11 I D wn A I 1' Pr i in r 9' 7" 1 I 1 5' - 8761' r 7 1' -3/8" 81 ft I 1'- 1 9 7 '- 89 ' Perforation Depth MD (ft): 8703' - 10932' Perforation Depth TVD (ft): I(~ G$$ (`0~3. ~OmmiSSltlYl 20. Attachments: ^ Property Plat ^ BOP Sketch ®Drilling Program ^ Time vs Depth Plot ^ Shallow Haza Anatysis ^ Diverter Sketch ^ Seabed Report ®Drilling Fluid Program ®20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. 1 hereby certify that the foregoing is a and correct. Contact Joshua Mallery, 564-5545 Printed Name Gre b Tdle Engineering Team Leader Prepared By Name/Number Signature Phone 564-4191 Date ` j3 ~ Sondra Stewman, 564-4750 Commission Use On Permit To Drill API Number. Number: ~~ ~3 50-029-21759-02-00 ° Permit al ate: See cover letter for other requirements Conditions of Approval: plf~box is checked, well may not be used to explore for, test, or produce coalb m,-e-,/ane, gas hydrates, or gas contained shales: Other. ~ ~ ~ r ~ ~ p ' -S ~ Samples Req'd: ~es I,n rvo Mud Log Req'd: ^ Yes ~No ny, -2T's~v S ~ ~ nh.,,,(.c7,~ ~S F'~~., HZS Measur/e/s~,: Yes /^ No D~ir/ectional Surve-y/,R~e~yq~'d: ~Y/e,1s. ^ No .r ~QI" 1 eS~ ~G'j tR.GH.C~ 7 (~Q+ S ~61.ri h ~G` l.0/+L~ IGTi`e'~.. ~ [ ~~1$' I ,~rG'L l"T6r. 6 / ~ ~ / 7 1 .-~- APPROVED BY THE COMMISSION /~ G~ l Date COMMISSIONER Form 10-401 Rlevised 0/2009 This permit is valid for 24 months from the date of approval (20 AAC 25.OOS(g)) Submit In Duplicate / ~" ~'! 23.0 ~ ~ ~ To: Alaska Oil & Gas Conservation Commission From: Joshua Mallery, ODE Date: November 9th, 2009 Re: K-12B Sidetrack Permit to Drill The sidetrack plan for the K-12B includes the following: during pre-rig operations laying cement across the perforations and cutting the 3-1/2" tubing 100' below the planned whipstock exit point. The whipstock exit from the 9-5/8" .casing is estimated at 8065' MD and will be milled using an 8-1/2" milling assembly. The 8-1/2" hole will be drilled to the Top of the Sag River where a 7" drilling liner will be run and fully cemented up to 150' inside the 9-5/8". The production hole will be drilled with a 6-1/8" BHA building to horizontal. The well will then run horizontally through the Ivishak formation. The liner will be a 4-1/2" 13Cr liner and the tubing will be 4-1/2" 13Cr, tied into the top of the production liner. Please note the following Well Summary as detailed on the next few pages: K-12B Permit to Drill Application Page 1 Planned Well Summary Well K-12B Wele Producer Ob ect ve Ivishak API Number: 50-029-21759-02 Current Status K-12A Shut-In and P&A Procedures commencing Estimated Start Date: Late-Dec-2009 Time to Com lete: 20 Da s Surface Northin Eastin Offsets TRS Location 5,975,524 671,372 1695' FNL / 1110' FWL 11 N, 14E, 4 Production Northin Eastin TVDss Offsets TRS Hole Tar et 5,974,914 671,361 -8,874 2304' FNL / 1084' FWL 11 N, 14E, 4 g Locations 5,975,170 671,630 -8,816 2054' FNL / 1359' FWL 11 N, 14E, 4 BHL 5,976,193 672,240 -8,715 1046' FNL / 1995' FWL 11 N, 14E, 4 Planned KOP: 8,065'MD/ 7,786' TVDss Planned TD: 11,307'MD/ 8,715' TVDss Ri Nabors 7ES GURT: 23.8'/28.5' RTE: 52.3' ` Directional - Schlumberger/Anadrill P4b KOP: 8065' MD Maximum Hole Angle: ~23° in the 8-1 /2" intermediate section 100° in the 6-1/8" roduction section Close A roach Wells: All wells pass ma'or risk criteria for close ap roach. Surve Pro ram: Standard MWD+IIFR+MS Nearest Pro a Line: 11,000' Nearest Well within Pool: Well K-19AL1 located 950' awa , center to center Contacts Name Phone # E-mail Drilling Engineer Joshua Mallery 564-5545 Joshua.Mallery@bp.com Geologist Doug Stoner 564-5652 Doug.Stoner@bp.com Pad Engineer Gavin Ramsay 564-4883 ramsg3 @bp.com K-12B Permit to Drill Application Page 2 Formation Markers K-12B (~ed on SOR) Est. Formation To s Uncertain Commercial Hydrocarbo n Bearin Est. Pore Press. Est. Pore Press. Formation (TVDss) eet) (Yes/No) (Psi) ( EMW) NOTE: All formation tops are required from 1000' above proposed KOP to TD for sidetracks NOTE: All formation tops are required from surface to TD for all new wells SV4 -3177 No SV3 -3675 No SV2 -3819 No SV 1 -4207 No UG4 -4641 No UG3 -4858 No UGl -4877 No WS2 -5455 No WSl -6158 No CM3 -6364 No CM2 -7137 No CMl' -7324 No THRZ -7546 No BHRZ -7777 No LCU/TJE -7796 No TJD -7951 TJC -8003 TJB -8155 TJA -8256 TSGR -8351 20 Yes TSHA -8400 20 Yes TSAD -8470 20 Yes TCGL -8570 20 Yes BCGL -8640 20 Yes 23SB -8673 20 Yes 22TS -8718 20 Yes 21TS -8770 20 Yes TZ1B -8833 20 Yes TDF -8880 20 Yes 3300 BSAD -8902 20 No K-126 Permit to Drill Application Page 3 Casinq/Tubinq Progra~ Hole Size Csg / Tb O.D. WUFt Grade Conn Burst si Collapse si Length Top MD /TVDrkb Bottom MD /TVDrkb 8-'/z" 7" 26# L-80 TC-II 7,240 5,410 747' 7,915' / 7,697' 8,662' / 8,403' 6-1/8" 4'/z" 12.6# L-80 IBT-M 8,430 7,500 2,795' 8,512' / 8,263' 11,307' / 8,767' Tubin 4'/z" 12.6# 13Cr-80 Vam-To 8,430 7,500 8,512' Surface 8,512' / 8,263' Mud Program Intermediate Mud Pro erties: LSND 8-1/2" hole section Depth Interval Density (ppg) PV YP API FL HTHP FL MBT PH 8,065'-8,662' 10 4 ~ 12 - 22 18 - 28 4 - 6 <10.0 <20 9 - 10 KOP to Sa . Production Mud Pro erties: FLOPRO SF Reservoir Drill-in Fluid 6-1/8" hole section De th Interval Densi PV YP LSVR API FI H MBT 8,662'-11,307' 8.4 - 8.5 8-12 22-28 >20,000 6.0-8.0 9.0-9.5 < 3 Logging Program 8-1/2" Intermediate: Sample Catchers - as required by Geology Drilling: Dir/GR/Res/ Open Hole: None Cased Hole: None 6-1/8" Production: Sample Catchers - as required by Geology Drillin Dir/GR/RES/Neu/Den Open Hole: None Cased Hole: None Cement Program Casin Size 7" 26#, L-80 Intermediate Liner Basis: Lead: None Tail: Volume of open hole + 30% excess + 80' shoe track + 150' of liner lap + 200' of 9-5/8" x 4" DP excess. Tail TOC: 7,915' MD Liner To ,excess will be circulated out Total Cement Volume: Spacer 25 bbls of Viscosified Spacer weighted to 12.5 ppg (Mud Push II) Lead N/A Tail 36 bbls, 202 cuft, 172.6sks 15.8 Ib/ al Class G + adds -1.17 cuft/sk Tem BHST =168° F, BHCT TBD b Schlumber er Casin Size 4.5" 12.6#, IBT-M Production Liner Basis: Lead: None Tail: Volume of open hole + 30% excess + 80' shoe track + 150' of liner lap + 200' of 7" x 4" DP excess. Tail TOC: 8,512' MD (Liner Top, excess will be circulated out) Total Cement Volume• Spacer 25 bbls of Viscosified Spacer weighted to 12 ppg (Mud Push II) Lead N/A Tail 60 bbls, 337 cult, 288 sks 15.8 Ib/ al Class G + adds -1.17 cuft/sk Tem BHST =190° F, BHCT TBD b Schlumber er K-12B Permit to Drill Application Page 4 Surface and Anti-Collision Issues Surface Shut-in Wells: There are no wells requiring surface shut-in in order to move onto the well. At surface K-01 well lines are 65' to the north and K-03 is to the south 37'. Close Approach Shut-in Wells: All wells pass major risk criteria. Hydrogen Sulfide K-Pad is not considered an H2S site. Recent H2S data from the pad is as follows: Well Name H2S Level Date of Readin #1 Closest SHL Well H2S Level K-O1 7 m 6/19/2009 #2 Closest SHL Well H2S Level K-03 20 m 3/16/2008 #1 Closest BHL Well H2S Level K-03 21 m 3/17/2008 #2 Closest BHL Well H2S Level K-07 10 m 8/12/2000 Max. Recorded H2S on Pad/Facility K-16 25 m 1/13/2006 K-Pad is not an H2S site, most wells are typically <10 Other Relevant H2S Data (H2S alarms from rigs, etc.) PPm Note: K-12A H2S level = 0 ppm (6/26/09) Faults Two fault crossings are expected in Zone 1 A but the faults are very small and we are crossing in Z1 A. No LC issues are expected. Well Control Well control equipment consisting of 5,000 psi working pressure pipe rams (2), blind/shear rams, and annular preventer will be installed and are capable of handling the maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 3,500 psi. BOP regular test frequency for K-12B will be 14 days during drilling phase and 7 days during decompletion and surface casing work. BOPE and drilling fluid system schematics on file with the AOGCC. Intermediate Interval Maximum antici ated BHP 3,126 si C~ 8,351' TVDss 7.2 EMW Maximum surface ressure 2,291 si .10 si/ft as radient to surface Kick tolerance Infinite with 10.7 ppg frac gradient, assuming 7.2 ppg reservoir, 4" DP and 10.4 MW Planned BOP test pressure Rams test to 3,500 psi/250 psi. Annular test to 2,500 si/250 si 9-5/8" Casin Test / 7" Casin 3500 si surface ressure Inte rit Test -8-1/2" hole FIT/LOT after drillin 20' from middle of window 7" Casin The VBRs will be Chan ed to 7" rams to accommodate the 7" drillin liner K-12B Permit to Drill Application Page 5 Production Interval Maximum antici ated BHP 3,300 si C~ 8,880' TVDss 7.2 EMW Maximum surface ressure 2,412 si .10 si/ft as radient to surface Kick tolerance Infinite with 8.8 ppg frac gradient, assuming 7.2 ppg reservoir, 4" DP and 8.5 MW Planned BOP test pressure Rams test to 3,500 psi/250 psi. Annular test to 2,500 si/250 si Inte rit Test - 6-1/8" hole FIT/LOT after drillin 20' of new hole Planned com letion fluids 8.5 Seawater / 6.8 Diesel Disposal • No annular injection in this well. • Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS- 04. Any metal cuttings will be sent to the North Slope Borough. • Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS-04 for injection. Haul all Class I waste to Pad 3 for disposal. K-12B Permit to Drill Application Page 6 Drillirll~ Hazards and Contin~ POST THIS NOTICE IN THE DOGHOUSE I. Well Control A. The Ivishak in this fault block is expected to be under-pressured at 7.2 ppg EMW. This pressure is estimated based on offset well pressures. 3500 psi test pressure is in accordance with the RP for Prudhoe production well casing tests for producing wells. II. Lost Circulation/Breathing A. K-Pad is in the med risk zone for LC according to the WURD lost circulation study and the seismic data indicates that we may have two small fault crossings in Z1 A in the lateral part of the sidetrack. B. The nearest lost circulation event into Z1 was 650 feet to the west where only 20 barrels were lost into Zone1 at a mapped fault crossing. There have been no other LC events into Zi in this fault block and we minimize LC risk by crossing the two mapped faults in Z1 A. III. Kick Tolerance/Integrity Testing A. With the planned mud weights, the kick tolerance for the intermediate section is infinite, and for the production section is infinite. The FIT/LOT will prove up adequate formation strength for expected ECD's. B. Integrity Testing Test Point Test D th Test t e EMW Ib/ al 9 $/a" window 20-ft minimum from the 9 5/8" window FIT/LOT 10.7 minimum 7" shoe 20-ft minimum from the 7" shoe FIT/LOT 8.8 minimum IV. Hydrogen Sulfide A. K-PAD is not considered an H2S site. K-12A H2S is 0 ppm. The highest recorded H2S level on the pad was 25 ppm on K-16 (1/13/06) V. Faults A. Two fault crossings are expected in Zone 1A but the faults are very small and we are crossing in Z1 A. No LC issues are expected. See Section II on lost circulation for more details. VI. Anti-Collision Issues A. All wells pass major risk criteria for close approach. K-04 is the closest well with 181' ctr-ctr ~ 10,483' MD CONSULT THE K-PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION K-12B Permit to Drill Application Page 7 Operations Summary Well Status• / PPPOT - T passed 09/30/09 / PPPOT - IC passed 09/30/09 / MIT - IA Passed to 3000 psi 09/9/09 / MIT - OA Passed to 2000 psi 09/6/09 Notify the field AOGCC representative with intent to plug and abandon Pre-riq prep work: F 1 Evaluate in'ectivi into the o en erfs to determine P&A method. Done. 10/31/09 C/F 2 Lay in or Bullhead/Squeeze cement to plug and abandon the perforations above the CIBP at 9,005'MD. Cement Calculations: 2-3/8", 4.6# liner - .00387 bbls/ft Max TOC - 8,202' MD (2-3/8" Liner Top) Min TOC - 8,603' MD (100' above top pert) Bottom of Cement - 9005' MD (CIBP) No clean out necessary to meet P&A objectives SBHP: 3,249 si SBHT: 190 °F S 3 WOC. Drift for 'et Cutter. Ta to of cement lu . F 4 CMIT T x IA to 2,500psi. Pressure test the cement plug to 2500 psi after cement reaches sufficient com ressive stren th, rior to cuttin the tubin . E 5 Jet cut 3-'/z" tubing @ 8,189' MD. 2' from the top of a pup joint. (Ref original completion tubin tall dated 11/3/87 . F 6 Circulate well with seawater and cap with diesel thru the cut. CMIT T x IA to 2,500 psi for 30 minutes. MIT-OA to 2000 si for 30 minutes. D 7 Bleed casin and annulus ressure to 0 si. W 8 Function tubing and casing lock down screws. Repair and replace as needed. Perform PPPOT-T and PPPOT-IC. Done. 9/30/09 V 9 Set a BPV in the tubin han er. Secure Well O 10 Remove the well house and flow line. Level the pad as needed for the rig. Provide total well re aration cost on the handover form. Proposed Procedure: 1. MIRU. 2. MIT - OA 2000 psi for 30 minutes (begin monitoring OA). CMIT TxIA to 2,500 psi 3. Pull BPV. Circulate out freeze protection and displace well to seawater. Set a TWC and test from below to 1000 psi for 30 minutes (also tests TxIA). NOTE: Tubing hanger has Cameron 3" Type H profile. 4. Nipple down tree. Nipple up and test BOPE to 3,500psi. Pull TWC. 5. RU and pull the 3-1/2" tubing from the pre-rig jet cut at 8,189' MD. Records indicate 4 steel hose clamps around the SSSV and 31 rubber protectors, one every other joint. Test the lower set of pipe rams. 6. Pick up 9-5/8" casing scraper. RIH to tubing stub at 8,189' MD, ensure casing is clean. POOH. LD scraper assembly. K-126 Permit to Drill Application Page 8 7. RU E-line, run a 9-5/8" E~ w/ GR/CCL for 47# casing. Set the EZ~t 8,065' MD. Rig Down E-line. 8. Pressure test the EZSV to 3,500 psi for 30 minutes and chart. 9. Change 9-5/8" Packoff. 10. PU 9-5/8" whipstock, bottom trip anchor and 8.5" window milling assembly (to include full gauge string mills). RIH to the top of the EZSV. Orient and set the whipstock. Swap the well over to 10.4 ppg fresh water LSND milling fluid. NOTE: 10.4ppg will be the mud weight at TD for the 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. Mill a window in the 9-5/8" casing at 8065' NID' plus 20' of HRZ formation. Perform a LOT. POOH for drilling BHA. MU an 8-1/2" drilling BHA with DIR/GR/RES (No ghost reamer) and RIH. Kick off and drill 8-1/2" intermediate interval to 7" casing point at the top of the Sag River CBU, wiper trip to shoe, circulate well clean and POOH. Run and cement a 7", 26#, L-80 drilling liner throughout the 8-1/2" hole and back into the 9-5/8" casing with 150' of overlap. Set hanger /liner top packer and displace cement with mud. POOH. M/U a 6-%e" DIR/GR/RES/NEU/DEN drilling assembly. P/U additional 4" drill pipe as required to TD the well and RIH to top of the float collar and test the casing to 3,500 psi for 30 minutes. Displace the well to 8.5 ppg Flo-Pro SF fluid Drill out shoe and 20' of new formation and perform an FIT. Drill build section and land well, per directional proposal. POOH to swap BHA. MU a 6-1/8" BHA with PDC bit and DIR/GR/RES/NEU/DEN. RIH and drill ahead, per directional proposal and rig site geologist, to TD. CBU at TD. Back ream to shoe, MAD passing as required by geologist. Circulate the well clean at the shoe and POOH. Run and a cement a 4-1/2", 12.6#, L-80, IBT-M liner from TD to 150' inside the 7" shoe. Set the liner top packer and displace the well to seawater. After cement reaches 1000 psi compressive strength, pressure test well to 3500 psi for 30 minutes and chart. RIH with DPC pert guns. Perf intervals to be determined from LWD logs. Plan to perforate overbalance. POOH, LD DP and pert guns. Run the 4-1/2", 12.6#, 13Cr completion tying into the 4-1/2" liner top. Drop ball & rod and set the production packer and individually test the tubing to 3,500 psi and annulus to 3,500 psi for 30 minutes each. Shear valve and confirm circulation. Set and test a TWC to 1000psi. ND BOPE. NU and test the tree to 5,000 psi (tree will be changed with 4-1/16") Pull TWC. Freeze protect the well to 2,200' TVD. Set a BPV. RDMO. Post-Ria Work: 1. Pull BPV. 2. Pull ball and rod / RHC plug. Set generic GLV design. 3. Install wellhouse, instrumentation, and flowlines. (S-Riser modification WILL be required.) Drilling Engineer: Joshua Mallery (907) 564-5545 Production Engineer: Gavin Ramsay (907) 564-4883 Geologist: Doug Stoner (907) 564-5652 ATTACH: Current Schematic Pre-Rig Schematic Proposed Schematic ~° K-126 Permit to Drill Application Page 9 1NELLHEAD = MCEVOY ACTUATOR = OTIS KB. ELEV = 52.8' BF. ELEV = 24.96' KOP = 5250' Max Angb = 36 ~ 1083.9' Datum MD = 91 ~' Datum TVD = 8800' SS ~ K-12A I 13~~~~ BTRS, ID =12.347" Minimum ID =1.996" ~ 8202' 2~/8" FL43 LINER SAFETY NOTES: WELL EXCEEDS 70° ~ 9400' dE t3DES HORiYONTAL ~ 9477'. 2006' OTIS SSSV LANDING NIP, ID = 2.75' GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATGi PORT DiATE 5 2986 2947 0 OTLS DMY RM 0 05/23108 4 5236 5146 9 OTIS DMY RM 0 05/23108 3 6816 6623 27 OTiS DMY RA 0 01 rz4/01 2 7766 7536 21 OTC DMY RA 0 01 rz4ro1 1 8176 7913 20 OT~i DMY RA 0 01 rzarol $19s' --2.70"' BKR DEPLOY SIV, ID = 2.25' 8202' TOP OF 2-318" 4.8N FL4S L-80 LNR 8271' 3-1/7' OTIS XA SLIDING SLV, ID = 2.75" .0087 bpf, ID = 2.997' I 8317' I ~ 2-7/6' TBG TAIL GJT OFF H $343' TOP OF BOT TIEBACK SLV 8393' X 7" BOTLNR HGR W/ TEBACK $400' 5G, 47#, L-80 BTRS, ID = 8.881" 8860' PERFORATION SUMMARY REF LOG: 3W5 MEM CNUGR ON 01/13!01 ANGLE AT TOP PERF: 28' O? 8703' Note: ReAar to Production DB tior historical peA data SIZE SPF INTERVAL Opn/Sgz DATE 1.56' 8 8703 - 8778 O 02/03/09 1.56' 4 9400 -9800 O 01!14101 1.56' 4 9800 -9950 O 01/14/01 1.58" 4 10050 -10250 O 01114/01 1.56' 4 10280 -10350 O 01/14/01 1.56' 4 10380 -10570 O 01/14/01 1.56' 8 10130 -10780 C 08125/05 1.56" 8 10848 -10878 C 08125/05 1.56' 8 10902 -10932 C 08125/06 MLLOUT WINDOW 9082' -9086' I 10~ 2-3/8° WFD CIBP (02/03/09) 2 3/8" PBTD ~-- j 10914' I ~' o-Im~IG sue, to =1.000" ~~TNV 12' TBG SEAL ASSY I ' ~ 9-5/8" X5-1/2" TMf PKR, ID = 4.75' 8882' TOP OF CEMENT I 9148' I 7" LNR 28~k, L-80, U43 9420' .0383 bpf, O = 8.278" I FISH - 2-7/8° TBG TAI. I 2-3/8" LNR, 4.8N, L-80 FL4S, ID = 1.985" I--~ 1 DIATE REV BY COMMEMS DIATE REV BY OOMNEIYI'S PRUDFIOE BAY UNIT 1ZtY6137 ORIGINAL COMPLETION ~108/OS TMNIPJC SET GBP 10660 WH.L: K 12A 011141101 CTU SIDETRACK 05/31/06 CO/DTM PERF CORRECTION (6113/04) PERMIT No:'2002070 06/04/01 CWKAK CO~ECTIONS 05J31/OB KDCJTD GLV C/O (5J23/tl8) API No: 50.029-21759-01 08104/00 CMOITLP MAX ANGLE CORRECTION 02107/09 RRKISV SET GBP / ADPBZF (02/03108) SBC 4, T11 N, R14E, 1695' SNL, 4170' WEL 06rz5/05 KEY/PJC PENS 07/30/05 DRS/R.N COMMENT BOX CORRECTION BA @xpbration (AWs ka) WELLHEAD = MCEVOY ACTUATOR = OTIS KB. ELEV = 52.8' BF. ELEV = 24.96' KOP = 5250' Max Ang~ = 36 ~ 10839' Datum MD = 9188' Datum TVD = 8800' SS 13-3/8" CSG, 72#, L-80 ~ 2688' BTRS, ID = 12.347" Minimum ID =1.996" ~ 8202' Z-3/8" FL4S LINER Pre-Ria Jet Cut H 8189' 3-12" TBG, 9.3#, L-80, EUE BRD, I 831 .0087 bpf, ID = 2.992" 2-7/8" TBG TAIL CUT OFF H $343' TOP OF BOT TIEBACK SLV 8393' X 7" BOT LNR HGR W/ TIEBACK 8400' SG, 47#, L-80 BTRS, ID = 8.881" $650' PERFORATION SUMMARY REF LOG: SWS MEM CNL/GR ON 01/13/01 ANGLE AT TOP PERF: 28° ~ 8703' Note: Refer to Production DB for historical perf data SQE SPF INTERVAL OpNSgz DATE 1.58" 6 8703 - 8778 O 02/03/09 1.56" 4 9400 -9800 O 01/14/01 1.55' 4 9800 -9950 O 01/14/01 1.55' 4 10050 - 10250 O 01/14/01 1.55' 4 10280 - 10350 O 01!14/01 1.55' 4 14390 - 10570 O 01/14/01 1.55' 6 10730 - 10760 C 06/25/05 1.55' 6 10848 - 10878 C 06/25/05 1.55' 6 10902 - 10932 C 06125/05 MILLOUT WINDOW 9082' -9086' X005' 1 2-3/8" WFD CIBP (02/03/09) 23/8" CIPB (SET 8/8/05) I PBTD H 10914' ~ ~- O-RING SUB, ID = 1.000" 7" LNR, 28#, L•80, U4S I .0383 bpf, ID = 6.276" SAFETY NOTES: WELL EXCEE0.S 70° ~ 9400' b O0E3 HORIZONTAL ~ 9477'. 2008' OTIS SSSV LANDING NIP, ID = 2.75" GAS LIFT MANDRELS ST MD ND DEV TYPE VLV LATCH PORT DATE 5 2986 2947 0 OTIS DMY RM 0 0523108 4 5235 5146 9 OTIS DMY RM 0 0523/08 3 6816 6623 27 OTIS DMY RA 0 0124!01 2 7798 7536 21 OTIS DRAY RA 0 0124/01 1 8176 7913 20 OTIS DMY RA 0 0124101 I 8199' 2.70" BKR DEPLOY SLV, ID = 2.25' 8202' TOP OF 2-3/8" 4.6# FL4S L-80 LNR I I 8271' 3-1/2" OTIS XA SLIDING SLV, ID = 2.75" ~~TMJ 12' TBG SEAL ASSY ' ~ 9.5/8" X5-1/2" TIW PKR, ID = 4.75' ~ 8882' TOP OF CEMENT LNR, 4.6#, L-SO FL4S, ID = K~2A Pre-Rig 195" ~- j 10950' ~ PRUDHOE BAY UNIT WELL: K-12A PERMIT No: 2002070 API No: 50-029-21759-01 SEC 4, T11N, R14E, 1895 SNL, 4170' WEL BP Exploration (Alaska) WELLHEAD = ACTUATOR = KB. ELEV BF. ELkV KOP = 8085' Msx Angb = Datum MD = Dattun TV D = K-12 Proposed SAFETY NO 2210' 41/2" HES X NIP, ID = 3.813" 13-3/8" CSG, 72#, L-80, ID = 12.347" 2688' 7915' H9-5/8" X 7" BKR 2XP LNR TOP PKR HGR ~9-5/8" BOT Whipstock ~--~ 8065 9-5/8" EZSV Plug $065' 3-1/2" Tubing Stub 8189' 6357' H 41/2" HES X NIP, ID = 8387' H BKR S-3 L-80 PKR 9-518" CSG, 47#, L-80, ID = 8.881" ~ 9163' 7" LNR 28#, L-80, ID = 8.278" ~--~ 9420' 4.112" 78G, 12.8#, 13Cr, .0152 bpf, ID = 3.958" H $512' 28#, L-80, .0383 bpf, ID = 8.278" I-I 8862' PBTD 1122T' 2" LNR, 12.8#, L-80, .0152 bpf, ID = 3.958° 11307' 8421' F-{41/2" HES X NIP, ID = 3.813" 8492' 4112" HES XN NIP, ID = 3.725" 8504' 41/2" WLEG, ID = 3.958" 8512' 7" X S" BKR 2XP LNR TOP PKR, HGR w !TIEBACK 11.15' X 5.25" PERFORATION SUMIMIRY ANGLE AT TOP PERT: Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL OoniSaa OWTE DATE REV BY COMUBVTS DATE F8a/ BY GOMMENTS 12/28187 ORIGINAL COM PLETION 08/08/05 TNWPJC SET CAP Q 10650 01M4f01 CTU SIOEfRACK 06/31108 CO1D1'M PERT LION (8113104) 06104101 CH(KAK CORRECTIONS 05/31108 KDGTD GLV CIO 523!08) 08104103 CMOITLP MAX ANGLE CORRECTION 02/07109 RRK/SV SET CAP / ADPERF (02103109) 0625105 KEY/PJC PERFS 08104!09 JEM K-128 Proposed 07/30IC>5 DRS/TLH COMMENT BOX CORR6C110N PRUDHOE BAY UNIT WELL: K-12A PERMT No: 2002070 API No: 50.029-21759-01 T11 N, R14E, 1695' SNL, 4170' WEL ~ Expksratbn (Alaska) by K-126 IP4bl Proposal SChlumberger -- - Report Date: November 6, 2009 Survey 1 DLS Computation Method: inimum urvature u ms i Client: BP Exploration Alaska Vertical Section Azimuth: 33.010° Field: Structure 1 Slot: Prudhoe Bay Unit - WOA ~ ~ K-PAD / K-12 Vertical Section Origin: I®~ TVD Reference Datum: N 0.000 ft, E 0.000 ft Rotary Table Well: ®~ K-12 TVD Reference Elevation: 52.26 ft relative to MSL A pr°~ Sea Bed 1 Ground level Elevation: 23.76 ft relative to MSL UWIIAPI#: 500292175902 p Magnetic Declination: 22.406° Survey Name 1 Date: K-128 (P4b) I November 6, 2009 Total Field Strength: 57685.551 nT Tort /AHD / DDI 1 ERD ratio: 212.850° / 3672.88 ft / 5.995 / 0.411 Magnetic Dip: 80.967° Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Declination Date: January 10, 2010 Location LaUlong: N 70.33901019, W 148.60933374 Magnetic Declination Model: BGGM 2009 Location Grid NIE Y/X: N 5975524.000 ftUS, E 671372.000 ftUS North Reference: True North Grid Convergence Angle: +1,30961937° Total Corr Mag North -> True North: +22,406° Grid Scale Factor: 0.99993336 Local Coordinates Referenced To: Well Head u Comments Measured Inclination Azimuth Sub-Sea TVD TVD Vertical NS EW Mag / Grav DLS Directional Zone Of Zone Of Northing Easting Depth True Section True North True North Tool Face Difficulty Exclusion Exclusion ft de de ft ft ft ft ft de de 1100 ft Index de Alert ftUS ftUS lie-in survey tsusa.o/ ~a.its ~aL./s //o~.yL /2f"14."Irf -IUZy.yL -lU/4.44 -L3U.04 I/4.40K u.uu 4./o Lo.iL a7/44~F~+AU or~ioa.ya BHRZ 8055.54 19.09 192.76 7777.00 7829.26 -1034.83 -1079.55 -237.79 174.42R 0.60 4.77 28.03 5974439.38 671158.96 Top Whipstock 8065.00 19.03 192.77 7785.94 7838.20 -1037.73 -1082.56 -238.48 89.90R 0.60 4.77 27.97 5974436.35 671158.34 LCU/TJE 8075.64 19.07 196.68 7796.00 7848.26 -1041.02 -1085.92 -239.36 86.20R 12.00 4.78 28.07 5974432.97 671157.54 Base Whipstock 8081.00 19.13 198.64 7801.07 7853.33 -1042.71 -1087.59 -239.89 --- 12.00 4.79 28.15 5974431.29 671157.04 Crv 4/100 8094.00 19.13 198.64 7813.35 7885.61 -1046.84 -1091.62 -241.25 113.66R 0.00 4.79 28.15 5974427.22 671155.77 8100.00 19.03 199.32 7819.02 7871.28 -1048.74 -1093.48 -241.89 113.02R 4.00 4.79 28.05 5974425.36 671155.18 8200.00 17.84 211.42 7913.92 7966.18 -1079.90 -1121.94 -255.27 101.54R 4.00 4.83 26.79 5974396.59 671142.45 TJD 8238.92 17.59 216.47 7951.00 8003.26 -1091.73 -1131.76 -261.88 96.72R 4.00 4.85 26.44 5974386.63 671136.08 TJC 8293.45 17.46 223.71 8003.00 8055.26 -1108.00 -1144.30 -272.43 89.82R 4.00 4.87 26.08 5974373.85 25.81 8300.00 17.47 224.58 8009.25 8061.51 -1109.93 -1145.71 -273.80 88.99R 4.00 4.88 26.05 5974372.41 671124.48 8400.00 17.97 237.64 8104.55 8156.81 -1138.66 -1164.67 -297.37 76.54R 4.00 4.91 25.86 5974352.92 671101.34 TJB 8453.13 18.58 244.14 8155.00 8207.26 -1153.36 -1172.74 -311.92 70.37R 4.00 4.93 26.00 5974344.51 671086.99 8500.00 19.29 249.50 8199.34 8251.60 -1165.98 -1178.71 -325.89 65.31R 4.00 4.95 26.25 5974338.23 671073.16 TJA 8560.23 20.41 255.79 8256.00 8308.26 -1181.69 -1184.78 -345.39 59.39R 4.00 4.97 26.75 5974331.72 671053.80 8600.00 21.26 259.56 8293.17 8345.43 -1191.73 -1187.79 -359.20 55.86R 4.00 4.99 27.19 5974328.40 671040.07 TSAG 8662.36 22.75 264.91 8350.99 8403.25 -1206.95 -1190.90 -382.33 HS 4.00 5.01 28.03 5974324.75 671017.01 End Crv 8662.37 22.75 264.91 8351.00 8403.26 -1206.95 -1190.90 -382.33 --- 4.00 5.01 28.03 5974324.75 671017.01 7" Csg 8662.38 22.75 264.91 8351.01 8403.27 -1206.96 -1190.90 -382.34 --- 0.00 5.01 28.03 5974324.75 671017.00 Crv 13.75/100 8682.37 22.75 264.91 8369.45 8421.71 -1211.73 -1191.59 -390.04 136.47R 0.00 5.01 28.03 5974323.89 671009.32 8700.00 21.05 269.56 8385.80 8438.06 -1215.57 -1191.92 -396.60 132.18R 13.75 5.03 25.87 .5974323.41 671002.77 TSHU 8715.15 19.71 274.14 8400.00 8452.26 -1218.31 -1191.75 -401.87 127.86R 13.75 5.04 24.06 5974323.46 670997.50 TSAD 8788.47 15.61 305.03 8470.00 8522.26 -1223.95 -1185.18 -422.34 98.34R 13.75 5.10 16.18 5974329.56 670976.89 8800.00 15.46 310.93 8481.11 8533.37 -1223.68 -1183.28 -424.77 92.66R 13.75 5.11 15.17 5974331.40 670974.41. WeIlDesign Ver SP 2.1 Bld( users) K-12\K-12\Plan K-128\K-126 (P4b) Generated 11/6/2009 8:54 AM Page 1 of 2 Comments Measured Depth ft Inclination de Azimuth True de Sub-Sea TVD ft TVD ft Vertical Section ft NS True North ft EW True North ft Mag 1 Grav Tool Face de DLS de 1700 ft Directional Difficulty Index Zone Of Exclusion de Zone Of Exclusion Alert Northing ftUS Easting ftUS TCGL 8892.86 19.49 352.36 8570.00 8622.26 -1210.17 -1159.72 -436.23 52.97R 13.75 5.18 12.48 5974354.69 670962.42 8900.00 20.09 354.64 8576.72 8628.98 -1208.30 -1157.32 -436.50 50.82R 13.75 5.18 12.78 5974357.09 670962.09 BCGL 8969.02 27.06 10.96 8640.00 8692.26 -1184.40 -1130.04 -434.62 35.83R 13.75 5.23 .18.29 5974384.40 670963.35 9000.00 30.61 15.85 8667.14 8719.40 -1170.32 -1115.52 -431.12 31.53R 13.75 5.25 21.66 5974398.99 670966.51 23S8 9006.84. 31.42 16.80 8673.00 8725.26 -1166.95 -1112.14 -430.13 30.72R 13.75 5.25 22.44 5974402.39 670967.43 22TS 9061.62 38.07 23.03 8718.00 8770.26 -1136.56 -1082.89 -419.38 25.59R 13.75 5.29 29.03 5974431.88 670977.50 9100.00 42.88 26.38 8747.19 8799.45 -1111.92 -1060.29 -408.94 23.04R 13.75 5.31 33.87 5974454.72 670987.42 21 TS 9132.22 46.98 28.75 8770.00 8822.26 -1089.27 -1040.13 -398.40 21.36R 13.75 5.34 38.01 5974475.11 670997.50 9200.00 55.74 32.84 8812.30 8864.56 -1036.43 -994.77 -371.24 18.80R 13.75 5.38 46.87 5974521.07 671023.62 TZ18 9239.43 60.89 34.84 8833.00 8885.26 -1002.90 -966.93 -352.55 17.75R 13.75 5.41 52.09 5974549.34 671041.67 9300.00 68.85 37.55 8858.71 8910.97 -948.20 -922.74 -320.16 16.59R 13.75 5.45 60.15. 5974594.25 3.04 TDF 9377.01 79.02 40.62 8880.00 8932.26 -874.73 -865.41 -273.53 15.74R 13.75 5.49 70.46 5974652.62 671118.34 9400.00 82.06 41.48 8883.78 8936.04 -852.28 -848.31 -258.64 15.60R 13.75 5.51 73.54 5974670.06 671132.83 90° Pt 9459.90 90.00 43.69 8887.92 8940.18 -793.40 -804.36 -218.23 15.45R 13.75 5.55 81.59 5974714.92 671172.22 9473.21 91.76 44.18 8887.72 8939.98 -780.34 -794.78 -209.00 --- 13.75 5.55 83.38 5974724.71 671181.23 Crv 8/100 9637.83 91.76 44.18 8882.65 8934.91 -618.91 -676.77 -94.33 29.32R 0.00 5.60 83.38 5974845.30 671293.17 9700.00 96.10 46.62 8878.39 8930.65 -558.35 -633.23 -50.18 29.49R 8.00 5.63 87.85 5974889.83 671336.30 K-12B Tgt 1 9734.54 98.50 48.00 8874.00 8926.26 -525.15 -610.00 -25.00 59.98R 8.00 5.64 89.66 5974913.63 671360.95 End Crv 9768.01 99.83 50.35 8868.67 8920.93 -493.42 -588.40 0.00 --- 8.00 5.66 88.17 5974935.79 671385.44 Crv 6/100 9928.97 99.83 50.35 8841.19 8893.45 -342.03 -487.21 122.12 109.72E 0.00 5.70 88.17 5975039.74 671505.21 10000.00 98.37 46.30 8829.95 8882.21 -274.41 -440.58 174.48 110.36E 6.00 5.72 89.90 5975087.55 671556.50 10100.00 96.25 40.64 8817.22 8869.48 -176.91 -368.63 242.68 111.08E 6.00 5.76 87.66 5975161.04 671623.02 K-126 Tgt 2 10111.38 96.00 40.00 8816.00 8868.26 -165.69 -360.00 250.00 97.96E 6.00 5.76 87.39 5975169.83 671630.14 10200.00 95.24 34.71 8807.32 8859.58 -77.78 -289.92 303.49 98.48E 6.00 5.79 86.41 5975241.11 671682.02 End Crv 10252.00 94.77 31.62 8802.78 8855.04 -25.98 -246.56 331.83 --- 6.00 5.81 85.86 5975285.11 671709.35 TD / 4-1/2" Lnr 11307.33 94.77 31.62 8715.00 8767.26 1025.37 649.03 883.12 --- 0.00 6.00 85.86 5976193.00 672240.00 Survey Error Model: BP ISCWSA version 10 "** 3-D 95.00% Confidence 2.7955 sigma Survevina Proa• MD From I ft 1 MD To I ft) EOU Frea Survey Tool Tvne Borehole -> Survey 0.00 27.26 Act-Stns BP_ZERO-Depth Only K-12 -> K-12 27.26 28.51 Act-Stns BP_ZERO K-12 -> K-12 28.51 8039.57 Act-Stns BP_GCT MS K-12 -> K-12 8039.57 8065.00 1!100.00 BP_GCT MS Plan K-12B -> K-126 (P4b) 8065.00 8360.00 1/100.00 BP_INC+TREND Plan K-12B -> K-126 (P4b) 8360.00 8662.38 1/100.00 BP_MWD+IFR+MS^^1 Plan K-12B -> K-126 (P4b) 8662.38 11307.33 1/100.00 BP_MWD+IFR+MS"^2 Plan K-12B -> K-12B (P4b) Legal Descriution: Northing (Yl fftUSl Eastina fXl fftUS1 Surface : 3585 FSL 4170 FEL S4 T11 N R14E UM 5975524.00 671372.00 K-126 Tgt 1 : 2975 FSL 4196 FEL S4 T11 N R14E UM 5974913.63 671360.95 K-12B Tgt 2 : 3225 FSL 3921 FEL S4 T11 N R14E UM 5975169.83 671630.14 TD ! BHL : 4234 FSL 3285 FEL S4 T11 N R14E UM 5976193.00 672240.00 WeIlDesign Ver SP 2.1 Bld( users) K-12\K-12\Plan K-12B\K-12B (P4b) Generated 11/6/2009 8:54 AM Page 2 of 2 by Schlumberger ALL K-126 (P4b) FIELD y Unit - WOA Prudhoe Ba STRDGTDRE K-PAD Magnetic PanmeYers SuNace Lor Yion NAD2] Abska Srare Planes. Zone 04, US Feet MiscNkereous MoEel'. BGGM 2009 Dip: 80.968° Daro: February 09. Z(110 Lat'. N]0 ]03043] N°riMng: 69]562d.00 flUS GnG Cmv'. .1.3096193]° SbL K-t2 TVD Ref: Rotary Talk (52.3fi ft ab°ve MSL) Mag Dec: .2I 366° FS-. 5]686.1 nT Lon: W 148 36 33.601 Fasting'. 6]13]] 00 kU5 S®la Fxt: 0.9999333616 Pkn: H-12B (P4bi SrW Date: September 10. 2009 -1600 -1200 -800 -400 0 400 800 1200 7600 8000 O O V c 8400 N U 8800 9200 ° -12 - Tie-in Survey Top Whipstock B~se Whips(ock - ...,,..,.., ....,.,,,.,. ..,.....,.,... 6,.,...,.....,....~.,i........,.e.,,.. .,,.,~.,...,..,.....,..s.~~..w.r.,.....~,......,.,.,~...,....«...,.....,.,s.,~.,........r~.r.... .. _.. _.. _.. _.. _i. _.. _.._.._........-.._..~.._.. .~,.. _.._..-..-..-..j.._.._.. _.._..-..-..-..-..y....._..-..-..-..-.._.._.j_.. _.. _.._.._..-..-.._.._i. _.. _.._.._.....-........~. _.. _.._.._.._.....-.. _.. y.. _.. _.. _.._.. _.._.. ._.._.._.._.._ _.._.._.._.. A_.._.._.._.._.._.._ _....._.._.._.....-.. ..-........_.....-..-.. ..-....._.._.._.....-.. ..-........_.....-..-. ..-..-....._....._.._. _ _.._.._.._.._.._ _.._.. ~ ~ L , 7" Ccg .-..-..-.... ..-..-..-..-. _ _.._ ' A~.. .. ..-..1..-..-........-.....-..-..i.....-..-..-........-..-.i-.....-...........-..-.. ..-..-...........-.... ..-..-..-..-...........i.....-..-..-.._.._ Crv 13.75N00 .-..-..-..-..>. ..-..-..- _.._.._ °~~L.-.. _.. _.. _.. _.. _.._ .j. -..-..-.._.._.._.. _.._..j_.._.. _....._.. _.. _.._.. .i_..-..-..-..-............ i.-..-..-..-..-.......... -' TD/4.1/2 Lnr._.._..- .j....-..-........- SB ~ End Crv Crv 61fi0 K-72B Tgt 2 . _.._.._.... .. .y. .~. _ _ _ _ .. _.._.._.._. _ _ _ _ •k- -r.- .). _ _ - - - - -i2E; 36 - Y ... .. ... ............f?...J.: ...... .... .....................:........... .....................:...... .~.......................:...... wtss.rgt x............:.. ........... ...... ......-................... .._.._.._.._.._;._.._.. Y~.._.._.._.._. ; crvanoo i i ._.._.._.._. .._.._.._.._.._..~. .._.._.. _.._ _.._.._ _ .._.._.._.._.. .i_.._.._.._.._.._.._....._i._.._.._.._.._.._.._.._. .._.._.._.._.._.._.._. _.._.._.._.._.._ ._.._.._.._..- - - _t~.._.._.._. _.._.._.._.._.._. . _.._ ._.._.._.._.._....._.._ _.._.._.._.._ - - - 7" Lnr B7 so° pe .;..C ...................................................................................................................................... <...................................;..................................;..................................;........................... 7600 • 8000 8400 8800 9200 • -1600 -1200 -800 -400 0 400 800 1200 Vertical Section (ft) Azim = 33.01 °, Scale = 1(in):400(ft) Origin = 0 N/-S, 0 E/-V - ~ ~ Schlumberger WELL FIELD STRUCTURE K-12B (P4b) Prudhoe Bay Unit - WOA K-PAD Magneto Parameters 9urtaca Location NAp21 Alaska State Plares. Zorre W, US Feet Miscellaneous Model: fiGGM 2009 Dq: 60968° Data'. February 03, 2010 tat: N]0202(143] Nortbirg: 69]5626.00 XUS Grid COnv: X13096193]° Sbt: K-12 Np Ref: Rolary Table (52.26 Xabwe MSL) Mag Dec: X22.366° FS'. 6]668.1 nT Lon: WiG83633601 Easling'. 6'/13]2.00 flUS Scale Fact: 0.999At33618 Plan: K~12B (PEp) Srvy Data: September 10. 2909 -600 -300 0 300 600 900 n n n Z 0 0 M u m U V v v 600 300 0 -300 -600 -900 -1200 -1500 600 300 0 -300 -600 -900 -1200 -1500 -600 -300 0 300 600 900 ~« W Scale = 1(in):300(ft) E »> 0 ~Cl~' Y 02AlK-02A ~K Project: Prudhoe Bay • ~a~ Site: PB K Pad ~q ~; ~°~9 ~~ 79`~ Well: K-12 ;~~ao j ~a;9 Wellbore: Plan K-12B ~o Design: Plan #4 K-12B 1- 1050 } K-126 Ft 3 8900ss 900 750 600 450 300 8g ~ x-9.0_ ~ ~~ ~ ~O ~v Sg 150 \ ~8 K 28 FR 1 8900ss~ ~ Ag1E-090 ~ 87 ~. / E I + 0 K~2/K-02 <m O Z K.041K-~ ~ ~ -150 \ °' NW9 t ~ ~ O ~ ~ ~ ~ ~ N W -300 ~ ~ Y -4$0 Of ~ ~ V Y N ~ ~ 1 ~~ ~ I i I( // I/ ~ // ~i -~~ ` I K-126 Poly \ _~ B9 ~~ -1050 .~~ t ~~iK-92A 88 78 ~~ 8 ~~ 0B ~ ~0 __f_s~ -1200 n ~, a , ;} . -r - - ~ ,~ ~'- i _ Q~ ~ ,, is w -1350 ti`~ ~ ~ ~o~ o ,P / I °j ~~ / .: f ~ aY Q-° ~ i _ .~~s~° 47~ ~ ~ N 1500 ~ ~ 61K•~6 ~ ~ ~ , 1~Kt 4. -900- -750 -600 -450 -300 2 -950- ^~ 150 ~ 450- 600 750 -900 4050 V~s~(-East(+) (30t~f~yn) ~rr~,~x~zn cx=rzm~~rm~ ----~ , ,~__ ~ - -- - ~ , ~ ~ '~ I ~ ---- .,, - - ~ -- --- r , ~ - - ~ ~ ~ , ~ ~ ~_ ~~ ~ ,_ ~ ~ I I r- - ~ ~ ~ ~ i __. _ ~,_, ~ ~ ~ ~ ~ i ~,,, i ~- ~ I , ~~ I ~~~lll ~„ ~ ~ _ ~ ~ ~ ~ ~~ i ~ VI ~ ~ ~ ~ I _ - __ _ L __:__ I _ _ ~~ ~ ~~ ` r ~ ~" ~ .._._ i __ ... _ _ ___ ~ I ~ ~ ~ 2 _ -~ --- - ~ - ~~ ~ ~ ~ ° - - , --j- ~ ~ ~ - ' ~ ~-------~ - ~ - ==~ 1 I- ~ -- - i--- -- - U ~ I - ~ ~ ~ ~ -- 1 ~ ;- ~~ ~I ~ ~ ~ --- i r _ _ __ I 1 ~ ~~ ` __ _ -- ~ ~ - ~----- - i --- ~- ~ ~i ~ _ - ~~ i i __- --- - --- ~~ ~ ~ ~ , ~ __--- - ., 'i ~ ! ill , ' ~ 1 - ~ ~- I i -- -- ~-- - ~. ~ ~ I - v ,; ~ __ _ - - -------~° o00 -- - - PI®~4 K-12B K-12, K-12, K-12 V5 K-12, K-IA, K-12A V'! -- K-12, K-12APBI, K-1?APBI VS STANDARD- ALASKA PRODUCTIO~J COMPANY WELLHEAD LOCATION DATA i i) WELL: K-12 FIELD: 7/9/86 2) Well Head Location 1695 'from North line 1110 ' from west 1 i ne Section 4 T 11 N, R 14 E, UPM X = 671,372. _ Y = 5,975,52u ASP Zone r 4 LAT = 70°-20~ 20.43` N, LONG 14836-33.60 ~~ W 3) Local Benchmark Elevation K-2 21,72 Ft. AMSL 4) Top Edge of Cellar 5) Kelly Bushing to Base Flange* 6) Kelly Bushing to Ground Level* 7) Base Flange Elevation 8. Kelly Bushing Elevation *Measured by Drilling Foreman NOTES: N.E. Corner 23.76 Ft. AMSL 27,83 Ft. AMSL 29.0 Ft. AMSL 24.96 Ft. AMSL 52.79 ~ Ft. AMSL 1) The surveyor should fill in Items 2, 3, and 4. 2) The completed form should be returned to Drilling Dept. for distribution, CIRCULATION: North Slope Production Engineering (Abrth Slope, BOC) - 1 Reservoir Engineering Operations (MB9-2) - 1 North Slope - to Rig for Posting (North Slope, BOC) - 2 Well Records (LR2-1) - 10 Well Files (MB12-1) - 1 Drilling, Technical Assistant (M612-1) - 1 Drilling, Completion Technical Assistant (MB12-1) - 1 Graphic Services, Supv. , Cartography (1~ID2-4)-1 o~+S1 1~' ,.-;-•ci~,~~.eACq ~t ~ .. .. {~'., •~ o. a.a•an. ~ r eeee a •~ ~_ ~ ~ ,.. Leo .~ ..:.~ h •......~e.~.c~ ~ ~~tii~~~ 7/14/86 ae TREE= MCEVOY 3" WELLHEAD = MCEVOY ACTUATOR= OTIS KB. 8_EV = 52.8' BF. ELEV = 24.96' KOP = 5250' Max Angle = 96 @ 10839' Datum MD = 9254' Datum ND = 8800' SS ~ K-12A ®' 13-3/8" CSG, 72#, L-80 26$$' BTRS, ID = 12.347" Minimum ID =1.995" @ 8202' 2 3/8" FL4S LINER 3-1 /2" TBG, 9.3#, L-80, EUE 8RD, 8317' .0087 bpf, ID = 2.992" 2-7/8" TBG TA L CUT OFF TOP OF BOTTIEBACK SLV $343' $393' 9-5/8" X 7" BOT LNR HGR W/ TIf~ACK 8400' 9-5/8" CSG, 47#, L-80 BTRS, D = 8.681 " $650' PERFORATION SUMMARY R~ LOG: SWS MEM CNL/GR ON 01 /13/01 ANGLE AT TOP PERF: 72 @9400' Note: Refer to Production DB for h'storical pert data SIZE SPF INTERVAL Opn/Sgz DATE 1.56" 4 9400 - 9600 O 01/14!01 1.56" 4 9800 - 9950 O 01/14/01 1.56" 4 10050 - 10250 O 01/14/01 1.56" 4 10280 - 10350 O 01/14/01 1.56" 4 10390 - 10570 O 01/14/01 7" LNR, 26#, L-80, U4S 9420' .0383 bpf, ID = 6.276" 2006' H OTIS SSSV LANDING NIP, ID = 2.75" GAS LIFT MANDRELS ST ND ND DEV TYPE VLV LATCH PORT DAlE 5 2986 2947 0 OTB DOME RA 1.5" 01/24/01 4 5235 5146 9 OT6 SO RA 1.5" 01/24/01 3 6816 6623 27 OT6 CN RA 1.5" 01/24/D1 2 7798 7536 21 OT6 TN RA 1.5" 01/24/01 1 8176 7913 20 OT6 DV RA 1.5" 01/24/01 $199' 2.70" BKR DEPLOY SLV, ID = 2.25" 8202' TOP OF 2-3/8" 4.6# FL4S L-80 LNR 8271' 3-1/2" OT6 XA SLIDING SLV, ID=2.75" $$21' ~ TNV 12' TBG SEAL ASSY $336' 9-5/8"X 5-1/2" TWV PKR, ID= 4.75" 8882' H TOP OF CBNENT MLLOUTWINDOW 9082'- 9086' 9148' HRH- 2-7/8" TBGTAL PBTD~-j 10914' O-RING SUB, ID = 1.000" 2-3/8" LNR, 4.6#, L-80 FL4S, D =1.995" H 10950' DATE REV BY COMMENTS DATE REV BY OOMVIENTS 12/26/87 ORIpNAL COMPLETION 11/22/00 SISSLT CONVERTED TO CANVAS 01/14/01 CTUSIDETRACK 06/04/01 CH/KAK CORRECTIONS 08/04/03 CMO/TLP MAXANGLECORRECTION PRUDHOE BAY UNTf W~L: K-12 PERMIT No: 2002070 API No: 50-029-21759-01 SEC 4, T11 N, R14E, 1695' SNL, 4170' WH. BP Exploration (Alaska) • Oilfield Services, Alaska Schlumberger Drilling & Measurements 2525 Gambell, Suite 400 Anchorage, AK 99503 Tel (907) 273-1766 Fax (907) 561-8367 Thursday, September 10, 2009 Josh Mallery BP Exploration (Alaska) Inc. Schlumberger PBU K-12B (P4b) Close Approach Analysis We have examined the potential intersections of subject well with all other potentially conflicting wells, according to the BPA Directional Survey handbook (BPA-D-004) dated 09/99. Method of analysis: 1. A list of wells to be analyzed is created in Compass by performing a global scan with an initial search radius of two hundred feet with an increment of one hundred feet for every one thousand feet of measured depth in the subject well. 2. Wells are analyzed using the Compass Anti-collision module (BP Company setup) with major risk safety factors applied. For problem wells that are plugged and abandoned or that can be shut in, risk-based safety factor may be used, with client notification. 3. All depths are relative to the planned well profile. Survey Prooram: Instrument Type Start Depth End Depth GCT MS 30.37' and 8,039.57' and INC + TREND 8,039.57' and 8,300.00' and MWD 8,300.00' and 8,662.00' and MWD +IFR + MS 8,300.00' and 8,662.00' and MWD 8,662.00' and 9,100.00' and MWD +IFR + MS 9,100.00' and 11,307.33' and Close Approach Analysis results: Under method (2), note. All wells pass. All data documenting these procedures is available for inspection at the Drilling 8~ Measurements Directional Planning Center. Close Approach Drilling Aids to be provided: A drilling map and traveling cylinder will be provided. Checked by: Scott DeLapp 09/10/2009 -- - - _______._-_. _._ICOI[[sion Report- _ - Company: North America -ALASKA - BP Local Co-ordinate Reference: Well K-12 Project: Prudhoe Bay TVD Reference: K-12B Plan @ 52.26ft (Nabors XES) ---- Reference Site: PB K Pad -MD Reference: -- - - - - - K-12B Plan @ 52:26ft (Nabors XES) - - Site Error: O.OOft North Reference: True --- Ref^~^ :..^'"'^"• - mss. z ..~.~ - K-12 Survey Calculation Method: Minimum Curvature Well Error: O.OOft Output errors are at 1.00 sigma Reference Wellbore Plan K-126 Database: EDM .16 - Anc Prod - WH24P Reference Design: Ptan #4 K-126 Offset TVD Reference: Offset Datum ..... R f 126 - _ Pt #4 K _ _ _ _ -----.. erence e an - - Filter type: GLOBAL FILTER APPLIED: All wellpaths within 200'+ 100/1000 of refen - Interpo anon- et od:~iTDlntervat . Error Model: Depth Range: 8,065.00 to 11,307.33ft Scan Method: Trav. Cylinder North i urvey Tool Program - - _ -Date 87572003 From To _ _ (ft) _ ---- _ (ft) .Survey (Wellbore) _ Toot Flame Description - _ _ _ 30.37 8,039.57 K-12 Srvy 1 GCT-MS (K-12) GCT-MS SchlumbergerGCT multishot i, 8,039.57 8,300.00 Plan #4 K-126 (Plan K-126) INC+TREND Inclinometer + known azi trend 8,300.00 8,662.00 Plan #4 K-126 (Plan K-126) MWD+IFR:AK MWD +IFR [Alaska] ~ -- --8;662:00 --_- 9; Y00:O~~lan #~K= Y26 (Plan - -__ --___1tAWD = Sttanztard 8,662.39 11,307.33 Plan #4 K-126 (Plan K-126) MWD+IFR+MS MWD +IFR + Multi Station W ~S/1~720~910:4T~4A][~ Page 2 of 4 COMPASS 2003.16 Build 71 • Project: Site: Prudhoe Bay PB K Pad Well: K-12 Wellbore: Plan K-126 Design: Plan #4 K-12B 90 180 Travelling Cylinder Azimuth (TFO+AZI) [°] vs Centre to Centre Separation [100 Win] From KOP to TD Scan interval 100 ft __- _ --- - Scale 1:100 0 EPA Aquifer Exemption - 40 CFR 147.102 (b)(3) 6050000 sooooo0 5950000 5900000 500000 600000 700000 • 800000 Alaska Department of Natural sources Land Administration System • Page 1 of~ Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources ~- Alaska DNR Case Summary File Type: ADL File Number: 28303 ~ Printable Case File Summary See Township, Range, Section and Acreage? ~~~~ Yes ~> No New Search LAS Menu ~ Case_Ab_stract ~ Case Detail ~ Land Abstract ~, File: ADL 28303 `'~'s` Search _for Status Plat_Updates As of 11/16/2009 Ca~stonier: 000107377 BP EXPLORATION (ALASKA) INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER- ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL & GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 09/14/1965 Total Acres: 2560.000 Date Initiated: 05/28/1965 Office ofPrimar}~ Responsibility: DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction: AA-NRB ASSIGNMENT APPROVED Meridian: U Township: O11N Range: 014E Section: 03 Section Acres: 640 Search Plats Meridian: U Township: O11N Range: 014E Section: 04 Section Acres: 640 Meridian: U Township: O11N Range: 014E Section: 09 Section Acres: 640 Meridia~~: U Township: O11N Range: 014E Section: 10 Section Acres: 640 Legal Description OS-28-1965 *** SALE NOTICE LEGAL DESCRIPTION*** CI4-12411 N 14E UM 3, 4, 9,10 2560.00 U- 3- 7 End of Case Summary Last updated on 11/1612009. http://dnr.alaska.gov/projects/las/Case_Summary.cfin?FileType=ADL&FileNumbet-283... 11 /16/2009 i TRANSMITTAL LETTER CHECKLIST WELL NAME ~~~ ~ ~y~~ PTD# v? O ~/~3 Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: ~,e~,O~/OE ~~Jy POOL: ~,~oy0~-~~,gy Dim Circle Appropriate Letter /Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well , (If last two digits in permit No. , APl No. 50- - - API number are between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce / infect is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through tar et zones. Non-Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev: 1111 /2008 ' Field & Pool PRUDHOE BAY, PRUDHOE OIL - 640150 --_.- _ - _----- _ PRUDHOE BAY UNIT K-126 ___ Pro ram DEV__- _ __ __ Well bore seg ^ _ -WeIlName: g ,.~: PTD#:2091430 Company BP EXPLORATION~ALASKA INC__ _ __ _ _._ Initial ClasslType _ _ DEV I PEND GeoArea 890 - __._-_ Unit 11650 __ OnlOff Shore On _ __ Annular Disposal ^ Administration '1 Permit_fee attached - NA 2 Lease number appropriate_ _ _ Yes - - 3 llni_que well name and number _ Yes ~4 Well located n_a_definedpool Yes ',5 Well located proper distance from drilling unit boundary_ Yes - ',6 Well located proper distance from_ other wells Yes _ '7 Sufficient acreage available in drilling unit- Yes 2560 acres. - IS If deviated, is wellbore plat included Yes _ I~9 Operator only affected party. Yes - - 10 Operator has appropriate bond in force Yes Blanket Bond # 6194193. _ _ _ _ _ X11 Permit can be issued without conservation order- Yes - Appr Date '12 Permit. can be issued without administrative approval Yes X13 Can permit be approved before 15-day wait- - _ _ Yes - _ _ _ _ ACS 11116/2009 X114 Well located within area and strata authorized by_Injection Order # (put 10# in comments)_(For NA 115 All wells within 114_mil_earea of review identified (For service well only) NA_ X16 Pre-produced miector; durat_io_n of pre production Less than 3 months_(For service well_ only) NA '17 Nonconven, gas conforms to A$31.05,030Q.1.A),Q,2.A-D) - NA --- _- 18 Conductorstnng provided NA - _ Contluctor_sei-in K-12A Engineering 1 19 Surface casing_protects all known. USDWs - NA_ Surface casing set in K-12A (AEO1 ) 20 CMT vol adequate_to circulate on conductor & surf csg NA surfacecasing cemented back to GL 21 CMT vol_ adequate. to tie-in long string to-surf csg- NA Production_casingset in K-12A ! 22 CMT_will cover all known_pro_ductive hori?ons Yes Solid liners to be cemented and perfed , 23 Casing designs adequate for C, T B & permafrost_ - - Yes 24 Adequate lankage_or reserve pit Yes - Rig equipped with Steel pits, All waste to approyed_disposal wells._ - - '25 If a re-drill, has a 10-403 for abandonment been approved Yes - - - 309 365 - - '126 Adequate wellbore separation proposed Yes Proximity analysis performed.. No issues. ',27 If diverter required, does it meei_regulations- NA_ Wellhead already_in place, Appr Date 28 Drilling fluid_program schematic & equiplistadequat_e Yes Max formalion_pressure = 3126 psi (7.2ppg) Will drill with 8.5 ppg mud. - GLS 11123/2009 I29 BOPEs, do they meetregulation Yes 30 BOPE_press rating appropriate; test t_o (put psig in comments) Yes MASP=.2291 psi Will test BOP to 3500 psi 31 Choke manifold complies wlAPl_RP-53 (May 84)_ Yes 32 Work will occur without operation shutdown_ Yes 33 Is presence_ of H2$ gas probable Yes H2S on K pad. Rig has sensors and alarms, 34 Mechanical_condition of wells within AOR verified (For service well only) NA -- 35 Permit can be issued wlo hydr_ogen_sulfidemeosures No Max level H2S on pad was 25ppm on well K-16 (1/13!06). Geology 36 ,Data presented on potential overpressure zones NA Appr Date I'37 Seismcanalysis_ ofshallow gas zones NA ACS 11/16!2009 38 Seabed conditionsurvey_(ifoff_-shore) NA 39 Contact name/phone for weekly-progress reports [exploratory only] NA_ Geologic Engineering is Date: Date Date Commissioner: Co, issioner• Com over ~~~ ~~ lz /-~ ~f ZS =0~
