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400758849 19 2014-12-23T14:59:45.22-07:00 96155 WHITING OIL & GAS CORPORATION

1700 BROADWAY STE 2300

DENVER CO 80290 Kyle Waggoner 970 4073008 432 6616647 Kyle Waggoner Field Regulatory Manager 2014-12-23T14:59:45.22-07:00 2014-12-23T14:59:45.22-07:00 438672 in process waggonk 2014-12-23T14:52:03.983-07:00 waggonk kyle.waggoner@whiting.com 0.00000 kyle.waggoner@whiting.com waggonk waggonk 2014-12-23T14:59:43.423-07:00 400671769 400758849 ALLISON, RICK 2014-08-22T00:00:00-06:00 TANK BATTERY WELD Lot2 20 10N 58W 6 Y NON-CROP LAND sunny 0 0 The flowline from the Nelson Ranches A7 was being replaced and historical staining was observed inside the tank battery on the flowline. Due to the volume of impacted soil it is estimated that 7 bbls of crude oil were released. The impacted soil has been excavated and taken to the Waste Management for disposal. Sidewall confirmation samples have been collected to determine if the excavation limits meet Table 910-1 limits. 400671769 false 2014-08-22T00:00:00-06:00 40.827372 -103.895316 FEE Gene Nelson 0 0 0 false <_x0032_7_approved>false S false >=5 and <100 0 >=1 and <5 0 0 true false false false true 0 2014-08-24T21:54:19.077-06:00 400758849 400758849 FORM 19 SUBMITTED 400758849.pdf 400758849 400758854 TOPOGRAPHIC MAP CO Spill Topo_NELSON RANCHES A6, A7.pdf 1516922 400758849 1 SPILL 2014-08-22T00:00:00-06:00 land owner Gene Nelson

970 8953325 400758849 1 2014-12-23T00:00:00-07:00 1 0 true false false false false false false A PID and samples were collected to determine the extents of impacts. Epping silt loam 0-9% slopes 100 0 100 Initial visual impacts were determined to be non-reportable as they were below the reporting thresholds. However, due to the volume of soil excavated the spill was reported. 7 0 0 0 3 0 0 0 0 0 false false 0 0 true false false false false false true true true false true true 70 8 6 Thread was being aborted.