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401508968 02 2018-01-25T15:15:07.957-07:00 10110 GREAT WESTERN OPERATING COMPANY LLC

1801 BROADWAY #500

DENVER CO 80202 Natalie Svendsen 303 398-0394 Natalie Svendsen Regulatory Analyst 2018-01-25T15:15:07.957-07:00 2018-01-25T15:15:07.897-07:00 UPLOADED nsvendsen 2018-01-10T10:21:49.877-07:00 nsvendsen regulatorypermitting@gwogco.com 3.00000 false nsvendsen@gwogco.com westerdb westerdb 2018-02-02T14:53:13.657-07:00 401508968 DR N N OIL SINGLE N Tollway LC 24-369HN 18804 NWSW 7 1S 67W 6 573 WATTENBERG FWL 2091 90750 5158 FSL ADAMS HORIZONTAL 2292 2280 FEL FEE 460 FNL 13 FEE 1S 68W 80 N2SE, SEC. 13, TWP 1 SOUTH, RANGE 68 WEST, 6TH P.M. 80 acres FEL 370 0 FSL 24 26 1S 68W FEET FEET N N N Y OFFSITE Commercial Disposal 20160041 ANNULAR PREVENTOR DOUBLE RAM 39.977673 -104.938236 2018-01-04T00:00:00-07:00 Greg Weimer 1.6 true false true false false false false false false false false false false false false FEE false Surface Use Agreement 460 FEET T1S-68W: Sec 13: All Sec 24: All Docket #: 180300132 pending March 2018 hearing 26 FEET true 318A OFFSITE Commercial Disposal false true false false false false false true true false false false DeAnna Baird dbaird@gwogco.com false false 401508968 The Alicia #12-15H-5N (API# 05-001-09826) operated by Ward Petroleum Corporation is the nearest well in the same formation. The distance was measured in 3D. The nearest wellbore belonging to another operator was measured to Alicia #12-15H-5N (API# 05-001-09826) operated by Ward Petroleum Corporation. The distance was measured in 3D. The well is in XX status. This well will not be stimulated within 150’ of another producing wellbore. SUA Parcel Map is attached as “Other” 401508968 401508968 FORM 2 SUBMITTED 401508968.pdf 401508968 401515310 MINERAL LEASE MAP Lease_Tollway.pdf 995011 401508968 401515311 SURFACE AGRMT/SURETY TOLLWAY - SUA - 8.19.2016 Redacted.pdf 782803 401508968 401515313 EXCEPTION LOC REQUEST Tollway Pad_Exception Location Request with Twinning.pdf 169175 401508968 401522812 OffsetWellEvaluations Data OffsetWellEvaluations Tollway-01182018.xlsx 45656 401508968 401522813 DIRECTIONAL DATA Tollway LC 24-369HN - COGCC Survey - 20180117.xlsm 65263 401508968 401522814 WELL LOCATION PLAT Tollway LC 24-369Hn_Plat.pdf 686951 401508968 401522816 DEVIATED DRILLING PLAN Tollway LC 24-369HN - Plot - 20180117.pdf 21460 401508968 401522817 OTHER SUA_Parcel map.pdf 1133105 401508968 401522818 EXCEPTION LOC WAIVERS Tollway-Rule 318A.a Waiver-11.14.2016 (002).pdf 250597 401508968 401508775 02A Tollway Pad 3083e110-35b8-4775-afb5-141b4c03dff0 401508968 3 Drilling/Completion Operations Prior to drilling operations, GWOG will perform an anti-collision scan of existing offset wells that have the potential of being within close proximity of the proposed well. This anti-collision scan will include definitive MWD or gyro surveys of the offset wells with included error of uncertainty per survey instrument, and compared against the proposed well path with its respective error of uncertainty. If current surveys do not exist for the offset wells, Operator may have gyro surveys conducted to verify bottom hole location. The proposed well will only be drilled if the anti-collision scan results indicate that there is not a risk for collision, or harm to people or the environment. false c3c83b5e-c801-4591-87a5-2a69cc7d1b78 401508968 5 Drilling/Completion Operations A BOPE with a minimum pressure rating of 3,000 psi will be utilized. At a minimum it will consist of 2 ram preventers and 1 annular preventer. The blind rams will be positioned below the pipe rams. A backup system of pressure control will be onsite consisting of at a minimum 1,000 psi accumulator (backup pressure). Accumulator is tested to 1,000 psi. Operator may use fixed sized pipe rams matching the tubular size. The annular preventer will be pressure tested to 250 psi low and 2,000 psi high for 10 minutes each. The ram preventers will be tested to 250 psi low and 2,500 psi high for 10 minutes each. All remaining well control equipment will be tested to 250 psi low and 2,500 psi high for 10 minutes each. The pressure tests will be conducted when the equipment is first installed and every 30 days thereafter. Pipe rams and blind rams will be function tested before every well service operation. Annual BOP inspections and pressure tests will be performed by the service company and will be charted & retained for 1 year. Backup stabbing valves shall be used on operations that require reverse circulation. Valves will be pressure tested before each well service operation in low pressure and high pressure range. The GWOC onsite representative will be certified in Well Control Operations by a Well-Cap certified training service. false 9d34aebb-d062-40a8-b66a-51292d9287df 401508968 4 Drilling/Completion Operations GWOG shall obtain signed written consent for any portion of the proposed wellbore’s treated interval within 150’ of an existing (producing, Shut-in, or temporarily abandoned) or permitted oil and gas well’s treated interval belonging to another operator prior to completion of the well. false 6b98c8aa-37d2-48c2-b25f-61c0f6aeab3a 401508968 8 Drilling/Completion Operations As applicable and technically feasible, per COGCC Rule 805, GWOC will utilize reasonable and cost-efficient best practices, including but not limited to those listed in Rule 805. Examples of these best practices that may be employed are included below. • Initial frac water load and drill out effluent is routed through a plug-part catcher and sand trap to remove solid debris. • If hydrocarbons are detected the effluent is routed through a high-pressure separator where the liquid hydrocarbons, produced water, hydrocarbon gas, and sand/solids are separated. • Once the quality of the hydrocarbon gas becomes saleable, and given the wellbore and facility/sales line conditions allow, gas will be routed to the sales pipeline. The separated liquid hydrocarbon, produced water, and sand/solids are directed to specific storage tanks where they are sold or hauled to disposal as appropriate. false 339c513e-acaa-43bd-ab6c-7628e979bd7a 401508968 6 Drilling/Completion Operations GWOC will comply with the “COGCC Policy for Bradenhead Monitoring during Hydraulic Fracturing Treatments in the Greater Wattenberg Area”, dated May 29, 2012 false 808449de-f253-4855-8c0c-86501c9e9129 401508968 1 Drilling/Completion Operations Conventional drill stem tests will not be conducted on DJ Basin horizontal wells currently being executed or planned by GWOC. If plans change in the future a well specific drill stem testing plan will be prepared for that particular well. Note that GWOC may elect to use one of several available wireline deployed tools for the purpose of measuring down hole formation pressures and/or collecting down hole fluid samples from the target formation(s) of a particular well. false d643e34b-a889-4960-888f-9b2919d485ac 401508968 2 Drilling/Completion Operations GWOC shall identify the location of the P&A wellbore with a permanent monument as specified in Rule 319.a.(5). The operator shall also inscribe or imbed the well number and date of plugging upon the permanent monument. P&A wellbores shall be cutoff well below ground surface in agricultural areas to provide for landowners to safely farm the reclaimed well area. false f019666b-8451-4cde-a8b5-bf6f60640de8 401508968 7 Drilling/Completion Operations One of the first wells drilled on the pad will be logged with an open-hole Resistivity and Gamma Ray Log from the kick-off point into the surface casing. All wells on the pad will have a cement bond log with gamma-ray run on production casing (intermediate casing or production liner if run) to the surface casing. The horizontal portion of every well will be logged with a MWD/GR log. The Form 5, Completion Report, for each well on the pad will list all logs run and have those logs attached. The Form 5 for a well without an open hole log shall clearly state “No open-hole logs were run” and shall clearly identify (by API#, well name and number) the well in which open-hole logs were run. false 401508968 1ST 8 1 2 5 1 2 17 18804 2373 18804 0 0 PLANNED 401508968 SURF 13 1 2 9 5 8 36 1700 707 1700 0 0 PLANNED 401508968 NIOBRARA NBRR Pending 1280 S.13 All, S.24 All Thread was being aborted.