<_x0034_00760128>

400760128 19 2015-01-05T16:49:04.077-07:00 47120 KERR MCGEE OIL & GAS ONSHORE LP

P O BOX 173779

DENVER CO 80217-3779 Mike Dinkel 720 929-6368 720 929-7368 Mike Dinkel Sr. HSE Representative 2015-01-05T16:49:04.077-07:00 2015-01-05T16:49:04.063-07:00 439795 in process jragan 2014-12-29T10:57:18.453-07:00 jragan Mike.Dinkel@anadarko.com 0.00000 Mike.Dinkel@anadarko.com jragan jragan 2015-01-05T16:48:58.423-07:00 400724415 400760128 CANFIELD, CHRIS 2014-11-04T00:00:00-07:00 WELL 05 123 40315 WELD NENE 7 2N 65W 6 N CROP LAND Sunny, 60F 0 0 During drilling operations at the Thomsen 1C-18HZ well location, water-based drilling fluids were released due to a fill pipe that was incorrectly hooked up. Approximately 8 bbls of water-based drilling fluids were released within the rig substructure. Approximately 4 bbls of the released water-based drilling fluids were recovered and added to the cuttings bin for beneficial reuse. Confirmation soil samples will be collected from the release area or excavation (as applicable). The analytical results and excavation details will be provided in a supplemental report. A topographic Site Location Map showing the general location of the release is attached as Figure 1. 400724415 true 2014-11-04T00:00:00-07:00 40.159141 -104.700563 FEE 0 0 0 true <_x0032_7_approved>false S false 0 0 0 >=5 and <100 0 true false true false false 0 2014-11-05T10:44:48.843-07:00 Approximately 8 bbls of water-based drilling fluid spilled 400760128 400760128 FORM 19 SUBMITTED 400760128.pdf 400760128 400760162 OTHER 24 Hour Spill Notification Email.pdf 77456 400760128 400760164 ANALYTICAL RESULTS 1412161R - Thomsen 1C-18Hz.pdf 309733 400760128 400760169 TOPOGRAPHIC MAP 014214385_FIG01_SL.pdf 562103 400760128 400760583 ANALYTICAL RESULTS Table 1.pdf 8121 400760128 400763500 SITE MAP 014214385_THOMSEN 1C-18HZ_FIG02_SITE.pdf 272478 400760128 1 SPILL 2014-11-05T00:00:00-07:00 County/Municipality Roy Rudisill

Email 400760128 2 SPILL 2014-11-05T00:00:00-07:00 County/Municipality Tom Parko

Email 400760128 1 2015-01-05T00:00:00-07:00 1 0 true false false false false false false Two surface soil samples (SS01 and SS02) were collected from the release area. Laboratory analytical results for surface soil samples SS01 and SS02 indicate that TPH, BTEX, pH, EC, and SAR levels are in compliance with COGCC allowable levels within the release area; therefore, no soil excavation is necessary. The general site layout, release area dimensions, and soil sample locations are shown on the Site Map attached as Figure 2. The soil sample analytical results are summarized in Table 1 and the laboratory analytical report is attached. Sand and Gravel / Roadbase 10 1 1700 450 5000 1660 1720 No further action is required. Laboratory analytical results for confirmation soil samples SS01 and SS02 indicate that TPH, BTEX, pH, EC, and SAR levels within the release area are in compliance with COGCC allowable levels. Based on the surface soil sample analytical results, Kerr-McGee is requesting a NFA status for this site. 0 0 0 0 0 0 8 4 0 0 false false 0 0 false false false false false false false false false false false true 50 20 1 400760128 1 2015-01-05T00:00:00-07:00 true false false false During drilling operations, water-based drilling fluid was released due to a fill pipe that was incorrectly hooked up. Approximately 8 bbls of water-based drilling fluid were released within the rig substructure. Approximately 4 bbls of the released water-based drilling fluid were recovered and added to the cuttings bin for beneficial reuse. The crew was instructed to double check the fill line connections after each rig skid, prior to commencing drilling. 0 false false true No excavation needed 0 0 Thread was being aborted.