SCHLUMBERGER Survey report 23-Nov-2008 01:06:13 Page 1 of 2 Client...................: BEACH PETROLEUM Field....................: BASS Well.....................: PEEJAY-1 Spud date................: 15-NOV-2008 API number...............: 08ASQ0031 Last survey date.........: 22-Nov-08 Engineer.................: MARGANDA/DALLAS/SAM Total accepted surveys...: 18 MD of first survey.......: 0.00 m RIG:.....................: WEST TRITON MD of last survey........: 1285.81 m STATE:...................: TASMANIA ----- Survey calculation methods------------- ----- Geomagnetic data ---------------------- Method for positions.....: Minimum curvature Magnetic model...........: BGGM version 2008 Method for DLS...........: Mason & Taylor Magnetic date............: 21-Nov-2008 Magnetic field strength..: 1223.97 HCNT ----- Depth reference ----------------------- Magnetic dec (+E/W-).....: 13.22 degrees Permanent datum..........: MEAN SEA LEVEL Magnetic dip.............: -70.86 degrees Depth reference..........: DRILLER'S DEPTH GL above permanent.......: 78.00 m ----- MWD survey Reference Criteria --------- KB above permanent.......: -112.07 m Reference G..............: 1000.23 mGal DF above permanent.......: -34.16 m Reference H..............: 1223.97 HCNT Reference Dip............: -70.86 degrees ----- Vertical section origin---------------- Tolerance of G...........: (+/-) 2.50 mGal Latitude (+N/S-).........: 0.00 m Tolerance of H...........: (+/-) 6.00 HCNT Departure (+E/W-)........: 0.00 m Tolerance of Dip.........: (+/-) 0.45 degrees ----- Platform reference point--------------- ----- Corrections --------------------------- Latitude (+N/S-).........: -304.57 m Magnetic dec (+E/W-).....: 13.22 degrees Departure (+E/W-)........: -304.57 m Grid convergence (+E/W-).: 0.42 degrees Total az corr (+E/W-)....: 12.80 degrees Azimuth from Vsect Origin to target: 0.00 degrees (Total az corr = magnetic dec - grid conv) Survey Correction Type ...: I=Sag Corrected Inclination M=Schlumberger Magnetic Correction S=Shell Magnetic Correction F=Failed Axis Correction R=Magnetic Resonance Tool Correction D=Dmag Magnetic Correction [(c)2008 IDEAL ID13_0C_14] SCHLUMBERGER Survey Report 23-Nov-2008 01:06:13 Page 2 of 2 === ======== ====== ======= ====== ======== ======== ================ =============== ===== ===== ====== Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (m) (deg) (deg) (m) (m) (m) (m) (m) (m) (deg) 100f) type (deg) === ======== ====== ======= ====== ======== ======== ================ =============== ===== ===== ====== 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TIP None 2 112.16 0.00 0.00 112.16 112.16 0.00 0.00 0.00 0.00 0.00 0.00 MWD_M None 3 264.95 1.45 150.86 152.79 264.93 -1.69 -1.69 0.94 1.93 150.86 0.29 MWD_M None 4 294.47 1.15 140.54 29.52 294.45 -2.24 -2.24 1.31 2.60 149.69 0.39 MWD_M None 5 323.97 1.06 150.84 29.50 323.94 -2.71 -2.71 1.63 3.16 148.94 0.22 MWD_M None 6 413.38 0.46 197.79 89.41 413.34 -3.77 -3.77 1.93 4.24 152.97 0.28 MWD_M None 7 502.18 0.23 197.76 88.80 502.14 -4.28 -4.28 1.76 4.63 157.63 0.08 MWD_M None 8 591.80 0.37 226.93 89.62 591.76 -4.65 -4.65 1.50 4.89 162.17 0.07 MWD_M None 9 679.52 0.12 321.43 87.72 679.48 -4.77 -4.77 1.23 4.93 165.53 0.14 MWD_M None 10 768.28 0.20 271.31 88.76 768.24 -4.70 -4.70 1.02 4.81 167.76 0.05 MWD_M None 11 803.99 0.21 236.85 35.71 803.95 -4.73 -4.73 0.90 4.82 169.20 0.10 MWD_M None 12 842.85 0.43 127.38 38.86 842.81 -4.86 -4.86 0.96 4.95 168.84 0.42 PUP None 13 930.97 0.44 102.94 88.12 930.93 -5.14 -5.14 1.55 5.37 163.20 0.06 PUP None 14 1019.59 0.43 112.01 88.62 1019.54 -5.34 -5.34 2.19 5.77 157.68 0.02 PUP None 15 1048.56 0.33 126.08 28.97 1048.51 -5.43 -5.43 2.36 5.92 156.50 0.14 PUP None 16 1108.49 0.33 130.22 59.93 1108.44 -5.64 -5.64 2.63 6.22 155.00 0.01 PUP None 17 1167.38 0.22 121.98 58.89 1167.33 -5.81 -5.81 2.86 6.47 153.82 0.06 PUP None 18 1285.81 0.69 61.10 118.43 1285.76 -5.59 -5.59 3.67 6.68 146.67 0.16 PUP None [(c)2008 IDEAL ID13_0C_14]