<_x0034_00879317>

400879317 19 2015-08-04T15:39:10.36-06:00 96155 WHITING OIL & GAS CORPORATION

1700 BROADWAY STE 2300

DENVER CO 80290 Kyle Waggoner 970 4073008 432 6616647 Kyle Waggoner Field Regulatory Manager 2015-08-04T15:39:10.36-06:00 2015-08-04T15:39:10.343-06:00 438672 in process waggonk 2015-08-04T15:10:47.97-06:00 waggonk kyle.waggoner@whiting.com 0.00000 kyle.waggoner@whiting.com waggonk waggonk 2015-08-04T15:39:07.89-06:00 400671769 400879317 ALLISON, RICK 2014-08-22T00:00:00-06:00 TANK BATTERY WELD Lot 2 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 true <_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 400879317 Remediation activities have been completed as all remaining soil concentrations are <Table 910.1 thresholds. 400879317 400879317 FORM 19 SUBMITTED 400879317.pdf 400879317 400879348 OTHER Nelson A6-A7 Site Summary Report_Complete.pdf 7814484 400879317 400879349 ANALYTICAL RESULTS 1504425_Summary.pdf 1490214 400879317 400879350 ANALYTICAL RESULTS 1506113_Summary.pdf 915440 400879317 400879351 ANALYTICAL RESULTS 1506466_SUMMARY.pdf 745573 400879317 400879352 ANALYTICAL RESULTS 1507015_Summary.pdf 819145 400879317 400879353 ANALYTICAL RESULTS Olsson lab report.pdf 4635249 400879317 400879354 SITE MAP Figure 3 - Whiting Soil Concentration Map.pdf 155869 400879317 400879355 SITE MAP Figure 4 - Talon Soil Concentration Map.pdf 445318 400879317 400879356 ANALYTICAL RESULTS Table 1 - Soil Analytical Data - Nelson A6 A7.pdf 26598 400879317 1 SPILL 2014-08-22T00:00:00-06:00 land owner Gene Nelson

970 8953325 400879317 1 2015-07-07T00:00:00-06:00 false false true false Impacts were observed while replacing the flowline. All flow lines have been pressure tested for leaks. 364 false false true 150 disposed 214 treated onsite 0 0 Thread was being aborted.