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400254036 05 47120 KERR-MCGEE OIL & GAS ONSHORE LP

P O BOX 173779

DENVER CO 80217-3779 CARA MAHLER 720 929-6029 720 929-7029 CARA MAHLER REGULATORY ANALYST 2012-02-22T08:11:27.517-07:00 DRAFT cmahler 2012-02-22T08:11:27.517-07:00 cmahler CARA.MAHLER@ANADARKO.COM 0.00000 CARA.MAHLER@ANADARKO.COM cmahler cmahler 2012-03-20T09:20:55.293-06:00 400254036 05 123 10124 00 WELD EICHTHALER #2 NWNW 34 2N 65W 6 1050 FNL WATTENBERG 1010 90750 FWL 1980-12-02T00:00:00-07:00 1996-12-22T00:00:00-07:00 1996-12-22T00:00:00-07:00 OW 7962 7962 4944 4955 CBL (4/19/2011), (4/27/2011), (5/16/2011) (Already Submitted) CBL (2/11/2012) 40.099350 -104.655396 2006-07-20T00:00:00-06:00 STEVE FISHER 2.5 Final Completion 400254036 400254036 FORM 5 SUBMITTED 400254036.pdf 400254036 400254457 CEMENT JOB SUMMARY CMT SQ TKT 4-20-11.pdf 250288 400254036 400254458 CEMENT JOB SUMMARY CMT SQ TKT 4-29-11.pdf 264049 400254036 400254459 CEMENT JOB SUMMARY CMT SQ TKT 5-6-11.pdf 268089 400254036 400254460 CEMENT JOB SUMMARY CMT SQ TKT 5-10-11.pdf 279591 400254036 400254461 CEMENT JOB SUMMARY CMT SQUEEZE TKT 2-17-12.pdf 830961 400254036 400254492 CEMENT JOB SUMMARY CMT SQ TKT 2-9-12.pdf 691157 400254036 400262980 CEMENT JOB SUMMARY CMT SQUEEZE TKT 2-14-12.pdf 73150 400254036 1ST 7 7 8 4 1 2 11.6 7862 500 7862 6880 0 CBL ACTUAL 400254036 1ST LINER 12 1 4 2 7 8 6.50 7929 7800 CALC ACTUAL 400254036 SURF 12 1 4 8 5 8 24 224 200 224 0 0 CALC ACTUAL 400254036 11005 1ST SQUEEZE 6830 100 6640 6842 400254036 11006 1ST SQUEEZE 840 120 800 1050 400254036 11007 1ST SQUEEZE 830 30 728 820 400254036 11008 1ST SQUEEZE 830 50 728 820 400254036 11009 1ST SQUEEZE 6520 130 6170 6615 400254036 11010 1ST SQUEEZE 830 50 820 830 400254036 11011 1ST SQUEEZE 830 50 820 830 400254036 cement work 400254036 cement work 1ST SQUEEZE (4/20/2011): Stung into cmt retainer, established circulation through squeeze perfs, pumped 80 sxs, stung out of cmt retainer, spotted 20 sxs across the squeeze perfs @ 6650', cmt retainer was drilled out and remnants pushed down to CIBP @ 7206', tested casing to 1000 psi, Ran CBL. 2ND SQUEEZE (4/29/2011): Shot squeeze perfs @ 1060' & 810', set cmt retainer @ 820', unable to circulate through squeeze perfs at 810', had to drill out cmt retainer set at 820', shot more squeeze perfs @ 830', set new cmt retainer @ 840', pumped 120 sxs, stung out of cmt retainer, started drilling out cmt retainer, squeeze not holding, able to pump into squeeze perfs at 1 bpm at 700 psi, finished drilling out cmt retainer and pushed remnants to CIBP @ 7206', squeeze perfs @ 1060' were tested to 1000 psi, top squeeze perfs @ 830' not holding 3RD SQUEEZE (5/6/2011): Pumped 30 sxs down tubing, no mention of setting another cmt retainer or packer, drilled out cmt, squeeze not holding, pressure drops from 800 psi to 500 psi in 4 mins, called for more cmt 4TH SQUEEZE (5/10/2011): Pumped 50 sxs, left 1.5 bbls cmt in csg above squeeze perfs, drilled out cmt, tested to 1000 psi, lost 50 psi in 30 mins, retested four times, same results, squeeze not holding, but unable to pump anymore cmt into squeeze interval, tagged CIBP The depths for the squeezes on 4/29/11, 5/6/11 & 5/10/11 are the same because a CBL was only run after the last squeeze. The squeeze on 4/29/11 has two intervals because that is what has a good bond on the CBL, the cmt in between is pretty poor, but there is not enough free pipe to attempt another squeeze in there. 2/9/2012-RU BJ Services & cmt across Niobrara through squeeze holes @ 6615'. Pumped 130 sks 50/50 poz w/2% gel & 10% salt. 2/14/2012-RU halliburton & squeeze leak in csg @ 830' w/50 sks SWIFTCEM cmt. 2/17/2012-RU BJ Services & squeeze csg leak @ 830' w/50 sks Neat cmt. Thread was being aborted.