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400666459 19 2014-08-18T14:30:54.75-06:00 96850 WPX ENERGY ROCKY MOUNTAIN LLC

1001 17TH STREET - SUITE #1200

DENVER CO 80202 Karolina Blaney 970 6832295 970 5890743 Karolina Blaney Environmental Specialist 2014-08-18T14:30:54.75-06:00 2014-08-18T14:30:54.733-06:00 438525 in process blaneyk 2014-08-18T13:39:38.983-06:00 blaneyk karolina.blaney@wpxenergy.com 0.00000 karolina.blaney@wpxenergy.com blaneyk blaneyk 2014-08-18T14:30:49.267-06:00 400660215 400666459 Spencer, Stan 2014-08-08T00:00:00-06:00 WELL 05 103 11272 RIO BLANCO SWNW 14 2S 98W 6 Y NON-CROP LAND warm, dry, sunny 0 0 The RG 11-14-298 well had a kill plug fail resulting in loss of well control. The well’s high pressure caused produced water and flowback fluid to mist out of the casing valve for approximately 17 hrs before the well was brought under control. The exact volume of fluids released is unknown at this time but is estimated to be between 200-240 bbls. 200 bbls of fluids was recovered with vacuum trucks. The vast majority of the released fluids was contained within the pad perimeter, though approximately 2 bbls left the location through a saturated section of the pad’s perimeter berm. 400660215 true 2014-08-08T00:00:00-06:00 39.880483 -108.366926 FEDERAL 0 0 0 false <_x0032_7_approved>false S false 0 0 >=100 0 >=100 true false true false false 0 2014-08-09T13:48:01.483-06:00 400666459 400666459 FORM 19 SUBMITTED 400666459.pdf 400666459 400666598 AERIAL PHOTOGRAPH RG 12-14-298 Form19 08-18-14.pdf 2612432 400666459 1 SPILL 2014-08-09T00:00:00-06:00 COGCC Stan Spencer

Verbal & initial Form 19

970 987-2891 400666459 2 SPILL 2014-08-09T00:00:00-06:00 COGCC Shaun Kellerby

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970 285-7329 400666459 3 SPILL 2014-08-09T00:00:00-06:00 BLM Erika Miller

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970 878-3808 400666459 4 SPILL 2014-08-09T00:00:00-06:00 BLM Bud Thompson

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970 878-3828 400666459 5 SPILL 2014-08-09T00:00:00-06:00 BLM Justin Wilson

Verbal

970 878-3825 400666459 6 SPILL 2014-08-09T00:00:00-06:00 Fire Department Steve Allen

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970 824-1682 400666459 7 SPILL 2014-08-09T00:00:00-06:00 Sheriff Si Woodruff

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970 878-9620 400666459 8 SPILL 2014-08-09T00:00:00-06:00 Public health Jeremy Simmons

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970 878-9526 400666459 9 SPILL 2014-08-09T00:00:00-06:00 County Mark Sprague

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970 878-9584 400666459 1 2014-08-18T00:00:00-06:00 0 0 true false false false false false false By field measurements and mapping with a Trimble GPS unit. Piceance fine sandy loam - sandy clay loam grading to channery clay loam to unweathered bedrock (Uinta Fm.) 50 0 7453 1012 During a workover operation, two mechanical kill plugs failed resulting in a loss of well control. A mixture of gas and produced fluids misted out of the casing valve for 17 hours before the well was brought under control. When the well was brought back into control, vac trucks already staged off the location moved onto the pad and recovered approximately 240 of the estimated 260 barrels of fluid released. A vast majority of the fluid was contained on the pad, however a small amount (approximately 2 bbls.) seeped through the earthen perimeter berm and migrated off site. No surface water features were impacted by the release. The impacted areas on and off the pad were field screened for hydrocarbons. Field screening results of the impacted area located off the pad indicated contaminant levels below the COGCC 910-1 standard of 500 ppm for TPH in soil. A confirmation sample was collected and submitted for analysis of the full Table 910-1 analytical suite. Field screening results of the impacted area located on the pad exceeded the COGCC Table 910-1 standard of 500 ppm TPH in soil. Due to the moisture on the pad, it will be allowed to dry for 2 weeks and will be re-sampled for the entire Table 910-1 analytical suite. Further remedial actions, if warranted will be based on these results. 0 0 0 0 130 120 0 0 130 120 false false 0 0 false false false false false false false false true true true true 435 410 2 400666459 1 2014-08-18T00:00:00-06:00 false true false false During a workover operation, two mechanical kill plugs failed resulting in a loss of well control. A mixture of gas and produced fluids misted out of the casing valve for 17 hours before the well was brought under control. The compromised kill plugs are being examined to determine what may have led to them to fail. Procedural, equipment changes or modifications may be implemented based on the findings of the investigation. false false false Thread was being aborted.