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401299221 02A 2017-07-05T09:10:04.777-06:00 10459 EXTRACTION OIL & GAS INC

370 17TH STREET SUITE 5300

DENVER CO 80202 Alyssa Andrews 720 481-2379 Alyssa Andrews Regulatory Analyst 2017-07-05T09:10:04.777-06:00 2017-07-20T11:54:38.49-06:00 UPLOADED ANDREWSA 2017-06-02T14:26:18.25-06:00 ANDREWSA aandrews@extractionog.com 6.00000 aandrews@extractionog.com schwarzs schwarzs 2017-07-20T15:29:06.563-06:00 401299221 true true false false false false 17-E Walt WELD SENE 17 7N 67W 6 5105 2101 FNL 353 FEL 40.575772 -104.909050 1.2 2017-05-17T00:00:00-06:00 C. Guffey 13 12 2 16 1 4 Extraction will trench flowlines in one piping corridor that runs between the drill pad and the separator pad and be placed at 12” centers. These lines will most likely be 2” or 3” fusion bonded SCH160 steel pipe and have proper cathodic protection throughout the run. Extraction will then sweep up with a long radius that will tie off each line to the appropriate separator. All welds on these are 100% x-ray and hydro tested to the API and Manufactures specs for a class 1500 series flange. Also meets ASME code B31.4. 2017-10-01T00:00:00-06:00 2018-01-01T00:00:00-07:00 5105 true false false OFFSITE Commercial Disposal FEE FEE true true true false Surface Use Agreement true 20130028 true true 32—Kim loam, 1 to 3 percent slopes false false false false false false false false false false 11 2333 131 false false No false 13.71 6.86 2 true OFFSITE Commercial Disposal false Nearest downgradient surface water feature: Ditch 11' E Nearest water well: Permit #43275 - 2333' SW Depth to water well: Permit #259625 - 4848' N 318A false false false false false false false false false NO false true true false false false false false false false false 401299221 MLVT Information: Manufacturer: Hydrologistics Time: 3 months Size/volume - 157' diameter/42,000 bbl Only 6 of the 13 APDs will be submitted at this time. The remaining will be submitted later. 401299221 401299221 FORM 2A SUBMITTED 401299221.pdf 401299221 401307309 NRCS MAP UNIT DESC 20170613_13443301085_51_Map_Unit_Description_Kim_loam_1_to_3_percent_slopes--Weld_County_Colorado_Southern_Part.pdf 121525 401299221 401331763 SURFACE AGRMT/SURETY Walt SUA Redacted.pdf 1228910 401299221 401348786 ACCESS ROAD MAP WALT 17-E PAD 7N67W17 Access Road Map.pdf 1384045 401299221 401348787 HYDROLOGY MAP WALT 17-E PAD 7N67W17 Hydrology Map.pdf 1071023 401299221 401348789 LOCATION DRAWING WALT 17-E PAD 7N67W17 Location Drawing.pdf 938613 401299221 401348790 MULTI-WELL PLAN Walt 17-E PAD 7N67W17 Multi-Well Plan.pdf 446238 401299221 401348791 OTHER WALT 17-E PAD 7N67W17 Notification Zone Drawing.pdf 937113 401299221 401348793 WASTE MANAGEMENT PLAN WMP 2017-04-17.pdf 120992 401299221 401348801 LOCATION PICTURES WALT 17-E PAD 7N67W17 Location Photos.pdf 608356 401299221 401299192 02 Walt 8N-20-20C 401299221 401299205 02 Walt 8N-20-22N 401299221 401299207 02 Walt 16E-20-1N 401299221 401299215 02 Walt 16E-20-3C 401299221 401299217 02 Walt 17W-20-1N 401299221 401299219 02 Walt 17W-20-3C fc60bea1-a4f6-4ab6-ad7c-03776aaa5a29 401299221 1 General Housekeeping 804. Visual Impacts: All long term facility structures will be painted a color that enables the facilities to blend in with the natural background color of the landscape, as seen from a viewing distance and location typically used by the public false 248134fe-183c-4607-95fb-3b9a9d3c181d 401299221 7 Drilling/Completion Operations Operator has an MLVT Design Package, certified and sealed by a licensed professional engineer, which is on file in their office and available upon request. The site shall be prepared in accordance with the specifications of the design package prior to tank installation; including ensuring that proper compaction requirements have been met. false 71cfbdfd-fd44-4d36-935e-14e3e6f8614c 401299221 9 Drilling/Completion Operations All liner seams will be welded and tested in accordance with applicable ASTM International standards. false 69df92fe-8b5c-47f2-95b4-1afcf7f45993 401299221 5 Construction 803. Permanent lighting will be installed around the facility to allow both the operator and haulers to conduct safe operations at night. All lights will be directed down toward the location or shielded so no light pollution leaves the facility. false 84a689ac-a334-4a0f-a920-5814c3242701 401299221 20 Interim Reclamation Operator shall be responsible for segregating the topsoil, backfilling, re-compacting, reseeding, and re-contouring the surface of any disturbed area so as not to interfere with Owner’s operations and shall reclaim such area to be returned to pre-existing conditions as best as possible with control of all noxious weeds. false 89c36dba-4eaa-4f2d-8450-4aa04b748ca6 401299221 6 Odor mitigation 805. Oil & gas facilities and equipment shall be operated in such a manner that odors and dust do not constitute a nuisance or hazard to public welfare. Operator is in the process of implementing a new base fluid for Oil Base Mud systems. The aromatics and BTEX concentrations are much less than that of generic diesel. With these two things being the major contributors to the odor from diesel, this should lead to less odor at the drill site caused by OBM. false 56c52784-6b99-4005-91c9-6645ed820afd 401299221 8 Drilling/Completion Operations The MLVT will be at least 75 feet from a wellhead, fired vessel, heater-treater, or a compressor with a rating of 200 horsepower or more. It will be placed at least 50 feet from a separator, well test unit, or other non-fired equipment. false 455f67b4-2033-4d3c-8342-680072ba160b 401299221 12 Drilling/Completion Operations Signs will be posted on the MLVT indicating that the contents are freshwater. false 2d145445-5a5c-41c5-9aad-6d8b5698ad3b 401299221 15 Drilling/Completion Operations Operator or contractor will conduct daily visual inspections of the exterior wall and surrounding area for integrity deficiencies. false 2702569d-8e4f-4f37-bf8d-7ee3de955281 401299221 16 Drilling/Completion Operations Operator has developed a contingency plan/emergency response plan associated with the MLVT and it is on file at their office. false 4c2e1f7e-3f4e-4620-8aea-640ce8a4ae13 401299221 4 Dust control 805.c. Operator shall employ practices for control of fugitive dust caused by their operations. Such practices shall include but are not limited to the use of speed restrictions, regular road maintenance, restriction of construction activity during high- wind days, and silica dust controls when handling sand used in hydraulic fracturing operations. Additional management practices such as road surfacing, wind breaks and barriers may be used. false 7f8ed12f-e655-461c-aae2-c4efc3be2978 401299221 3 Storm Water/Erosion Control Implement and maintain BMPs to control stormwater runoff in a manner that minimizes erosion, transport of sediment offsite, and site degradation. Co-locate flowlines and/or gathering lines whenever feasible, and mitigate any erosion problems that arise due to the construction of any pipeline(s). Location will be covered under Extraction Oil & Gas’s field wide permit, permit number COR03M013. Typical stormwater BMPs installed include a diversion ditch and berm with sediment traps and installation of wattles where necessary. false 5ec92a6c-5c67-42cb-a43a-90cf4c87aca8 401299221 13 Drilling/Completion Operations The MLVT will be operated with a minimum of 1 foot of freeboard at all times. false dfb11a3a-9767-45dd-844e-d2872ce05a76 401299221 18 Drilling/Completion Operations A fabric reinforced liner will be utilized. In the event that a tank breach were to occur, the fabric reinforced liner will prevent a “zippering” failure from occurring. The liner will meet the specifications per the design package. false 343f05a4-e435-4d0a-b94a-6ee4fdc372d4 401299221 10 Drilling/Completion Operations Operator will be present during initial filling of the MLVT and the contractor will supervise and inspect the MLVT for leaks during filling. false 6a0a6daa-4423-4e18-8938-6925883bc3d7 401299221 17 Drilling/Completion Operations Tanks will be filled using a local water source through temporary waterlines. No water will be trucked to location. false 5072b71f-ae45-40d2-9b94-b8c2fc9455b0 401299221 2 General Housekeeping Maintain appearance with garbage clean-up; a trash bin will be located on site to accumulate waste by the personnel drilling the wells. Site will have unused equipment, trash and junk removed immediately. false 69edc8b9-6fc7-43ac-a07c-d0ce8ad47ccf 401299221 14 Drilling/Completion Operations Access to the MLVT will be limited to operational personnel and authorized regulatory agency personnel. false 52577098-df33-432a-8253-ff964f6e45ce 401299221 19 Drilling/Completion Operations Operator acknowledges and will comply with the Colorado Oil & Gas Conservation Commission Policy on the Use of Modular Large Volume Tanks in Colorado dated June 13, 2014. false 8699f7c5-4068-4982-aceb-adfa9d03f59b 401299221 11 Drilling/Completion Operations Operator will comply with the testing and re-inspection requirements and associated written standard operating procedures (SOP) listed on the design package. false 401299221 Cactus Hill Ranch

P.O. Box 691

Windsor CO 80550 401299221 13 12 2 16 1 4 Extraction will trench flowlines in one piping corridor that runs between the drill pad and the separator pad and be placed at 12” centers. These lines will most likely be 2” or 3” fusion bonded SCH160 steel pipe and have proper cathodic protection throughout the run. Extraction will then sweep up with a long radius that will tie off each line to the appropriate separator. All welds on these are 100% x-ray and hydro tested to the API and Manufactures specs for a class 1500 series flange. Also meets ASME code B31.4. 2 401299221 C true 401299221 F true 401299221 false false false false false false false false Thread was being aborted.