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400743857 19 2014-12-05T10:07:30.53-07:00 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 2014-12-05T10:07:30.53-07:00 2014-12-05T10:07:30.5-07:00 in process jragan 2014-12-02T14:04:58.827-07:00 jragan Mike.Dinkel@anadarko.com 0.00000 Mike.Dinkel@anadarko.com jragan jragan 2014-12-05T10:07:28.923-07:00 400743857 400743857 2014-12-01T00:00:00-07:00 WELL 05 123 40619 WELD SESW 2 2N 65W 6 Y NON-CROP LAND Sunny, 45F 0 0 During surface casing drilling operations for the Greenleaf 30N-2HZ well, water-based drilling fluids were released due to lost circulation while drilling at the surface through sandy soils in the wellbore. Approximately 40 bbls of water-based drilling fluid surfaced in two locations on the bermed wellpad. Approximately 40 bbls of the released water-based drilling fluid were recovered for beneficial reuse. Approximately 14 cubic yards of soil were excavated and added to the cuttings bin for beneficial reuse. Confirmation soil samples were collected from the two release areas. A topographic Site Location Map showing the general location of the release areas is attached as Figure 1. 400743857 true 2014-12-01T00:00:00-07:00 40.161713 -104.634614 FEE 0 0 0 true <_x0032_7_approved>false I false 0 0 0 >=5 and <100 0 true true true false false 0 2014-12-02T14:04:59.28-07:00 Approximately 40 bbls of fresh water-based drilling fluid surfaced inside well pad containment 400743857 400743857 FORM 19 SUBMITTED 400743857.pdf 400743857 400744029 OTHER Greenleaf 30N-2HZ - 24hr Notice.pdf 89164 400743857 400744107 TOPOGRAPHIC MAP 014214411_GREENLEAF 30N-2HZ_SL.pdf 293484 400743857 400745977 ANALYTICAL RESULTS Greenleaf Table 1.pdf 8194 400743857 400745978 ANALYTICAL RESULTS X412044 KMG-Greenleaf 30N-2HZ (rev).rpt.pdf 516691 400743857 400746000 SITE MAP 014214411_GREENLEAF 30N-2HZ_SITE.pdf 237018 400743857 1 SPILL 2014-12-02T00:00:00-07:00 County/Municipality Roy Rudisill

Email 400743857 2 SPILL 2014-12-02T00:00:00-07:00 County/Municipality Tom Parko

Email 400743857 1 2014-12-03T00:00:00-07:00 1 0 true false false false false false 2 false Soil samples were collected from the two release areas. Two surface soil samples (SS01 and SS02) were collected from the northwestern release area. The southeastern release area was excavated and four excavation sidewall soil samples (N01@2', E01@2', S01@2', and W01@2') and one excavation base soil sample (B01@2.5') were collected. The surface and excavation soil samples were submitted for laboratory analysis of TPH and BTEX and were in compliance with COGCC allowable levels within the release areas. The general site layout, release area and excavation 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 reports are attached. Sand and Gravel / Roadbase 10 6 1005 800 1950 3000 2700 No further action is required. Laboratory analytical results for confirmation soil samples SS01, SS02, N01@2', E01@2', S01@2', W01@2', and B01@2.5' indicate that TPH and BTEX concentrations within the release area are in compliance with COGCC allowable levels. Based on the soil sample analytical results, Kerr-McGee is requesting a NFA status for this site. 0 0 0 0 0 0 40 40 0 0 false false 0 0 false false false false false false false false false false false true 15 10 400743857 1 2014-12-03T00:00:00-07:00 false true false false During surface casing drilling operations for the Greenleaf 30N-2HZ well, water-based drilling fluids were released due to lost circulation while drilling at the surface through sandy soils in the wellbore. Approximately 40 bbls of water-based drilling fluid surfaced in two locations on the bermed wellpad. Approximately 40 bbls of the released water-based drilling fluid were recovered for beneficial reuse. Approximately 14 cubic yards of soil were excavated and added to the cuttings bin for beneficial reuse. The drilling rate will be slowed during surface drilling and a conductor casing will be used. 14 false true false 0 0 Thread was being aborted.