<_x0034_00758511>

400758511 19 2014-12-23T12:53:24.687-07:00 96155 WHITING OIL & GAS CORPORATION

1700 BROADWAY STE 2300

DENVER CO 80290 Kyle Waggoner 970 4073008 432 6616647 Kyle Waggoner Field Regulatory Manager 2014-12-23T12:53:24.687-07:00 2014-12-23T12:53:24.673-07:00 437569 in process waggonk 2014-12-23T11:23:40.407-07:00 waggonk kyle.waggoner@whiting.com 0.00000 kyle.waggoner@whiting.com waggonk waggonk 2014-12-23T12:53:23.267-07:00 400624329 400758511 ALLISON, RICK 2014-06-09T00:00:00-06:00 TANK BATTERY WELD Lot2 7 10N 57W 6 N NON-CROP LAND partly cloudy 0 0 The well kicked creating a surge in the tanks causing the tanks to overflow resulting in the loss of ~6 bbls of produced water and ~2 bbls of crude oil within the containment. A light spray (~<0.25 bbl) misted onto the location. The containment and the location was wet due to the recent rainfall, therefore all liquids (including rainwater) were removed via vacuum truck to the maximum extent possible. Once dry, any remaining impacts above table 910-1 will be excavated. 431527 400624329 true 2014-06-09T00:00:00-06:00 40.854253 -103.802047 na FEE Jack Fickus 0 0 0 true <_x0032_7_approved>false S false livestock grazing >=1 and <5 0 >=1 and <5 0 0 true COGCC changed the reference facility from the API to the Location ID. false false true false 0 2014-06-10T16:39:03.28-06:00 400758511 400758511 FORM 19 SUBMITTED 400758511.pdf 400758511 400758622 TOPOGRAPHIC MAP CO Spill Topo_HORSETAIL 07-0611H.pdf 1822553 400758511 400758639 ANALYTICAL RESULTS Horsetail 07-0611H Analytical Data.pdf 1042221 400758511 400758641 DISPOSAL MANIFEST Horsetail 07-611H Manifests.pdf 1398123 400758511 400758642 SITE MAP Horsetail 07-0611H Site Map.pdf 230373 400758511 1 SPILL 2014-06-10T00:00:00-06:00 Landowner Jack Fickus

Mike Staab called and notified landowner.

970 4669205 400758511 1 2014-12-23T00:00:00-07:00 0 0 true false false false false false 4 false During excavation visual and olfactory observations were utilized to determine the extents. Confirmation soil samples were collected to determine the final extents. The release was confined to the well pad location - ascalon fine sandy loam, 0-6% slopes. 60 0 600 2 1 0 0 6 5 0 0 0 0 false false 0 0 false false false false false false true true true false true true 90 75 6 400758511 1 2014-12-23T00:00:00-07:00 false true false false The well kicked creating a surge in the tanks causing the tanks to overflow. More frequent tank loadouts were scheduled to keep the fluid levels lower in the tanks in the event this happened again. 230 true false false 0 0 Thread was being aborted.