COGIS - WELL Information

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Surface Location Data for API # 05-123-45902                               Status: PR         9/2/2018
Well Name/No: Hergert South #35W-15-8N (click well name for production)
Operator: EXTRACTION OIL & GAS INC - 10459
Status Date: 9/2/2018 Federal or State Lease #:
FacilityID: 453071 LocationID: 453075
County: WELD #123 Location: NESE  35 7N67W 6 PM
Field: WATTENBERG  - #90750 Elevation: 4,883 ft.
Planned Location       2271 FSL  591 FEL Lat/Long: 40.529589/-104.853198 Lat/Long Source: Field Measured
As Drilled Location      Footages Not Available Lat/Long: 40.529591/-104.853198 Lat/Long Source: Field Measured

Chemical Disclosure Registry
Job Date:         6/23/2018
Job End Date:  7/3/2018
Reported:   7/9/2018 Days to report:  6
Wellbore Data for Sidetrack #00                                                    Status: PR         9/2/2018
Spud Date: 1/25/2018 Spud Date is: ACTUAL
Wellbore Permit   HORIZONTAL
Permit #: Expiration Date: 11/16/2019 4:18:38 PM
Prop Depth/Form: 14900 Surface Mineral Owner Same:
Mineral Owner: FEE Surface Owner: FEE
Unit: Unit Number:
Formation and Spacing: Code: NBRR , Formation: NIOBRARA , Order: , Unit Acreage: 560, Drill Unit: GWA
Casing: String Type: CONDUCTOR , Hole Size: 24, Size: 16, Top: 0, Depth: 80, Weight: 42
Cement: Sacks: 50, Top: 0, Bottom: 80, Method Grade:
Casing: String Type: SURF , Hole Size: 12.25, Size: 9.625, Top: 0, Depth: 1500, Weight: 36
Cement: Sacks: 400, Top: 0, Bottom: 1500, Method Grade:
Casing: String Type: 1ST , Hole Size: 8.5, Size: 5.5, Top: 0, Depth: 14900, Weight: 20
Cement: Sacks: 1952, Top: 1500, Bottom: 14900, Method Grade:
Wellbore Completed
Completion Date: 4/22/2018
Measured TD: 14945 Measured PB depth: 14928
True Vertical TD: 6896 True Vertical PB depth: 6894
Top PZ Location:           Sec: 35 Twp: 7N 67W Footage: 937 FSL  498 FEL Depth
Bottom Hole Location:   Sec: 34 Twp: 7N 67W Footages: 1058 FSL  2517 FEL Depth
Log Types: CBL, Mud, MWD/LWD, (Triple Combo on 123-45907).
Casing: String Type: CONDUCTOR , Hole Size: 24, Size: 16, Top: 0, Depth: 80, Weight: 42
Cement: Sacks: 100, Top: 0, Bottom: 80, Method Grade: VISU
Casing: String Type: SURF , Hole Size: 13.5, Size: 9.625, Top: 0, Depth: 1548, Weight: 36
Cement: Sacks: 525, Top: 0, Bottom: 1548, Method Grade: VISU
Casing: String Type: 1ST , Hole Size: 8.5, Size: 5.5, Top: 0, Depth: 14928, Weight: 20
Cement: Sacks: 2400, Top: 101, Bottom: 14928, Method Grade: CBL
Formation Log Top Log Bottom Cored DSTs
PARKMAN 3801 N N
SUSSEX 4356 N N
SHANNON 4961 N N
SHARON SPRINGS 7286 N N
NIOBRARA 7366 N N
Completed information for formation N-COM                                     Status: DG         6/19/2018
1st Production Date: 4/1/2018 Choke Size:
Status Date: 6/19/2018 Open Hole Completion:
Commingled: Production Method:
Formation Name: NOT COMPLETED Status: DG
Tubing Size: Tubing Setting Depth:
Tubing Packer Depth: Tubing Multiple Packer:
Open Hole Top: Open Hole Bottom:
No Initial Test Data was found for formation N-COM .
No Perforation Data was found for formation N-COM .
Completed information for formation NBRR                                     Status: PR         9/2/2018
1st Production Date: 8/16/2018 Choke Size:
Status Date: 9/2/2018 Open Hole Completion: N
Commingled: N Production Method:
Formation Name: NIOBRARA Status: PR
Formation Treatment Treatment Type: FRACTURE STIMULATION
Treatment Date: 6/22/2018 Treatment End Date: 7/3/2018
Treatment summary: Frac'd Niobrara with 49-stage plug-and-perf; 14704400 total lbs proppant pumped: 7343490 lbs 40/70 mesh and 7360910 lbs 30/50 mesh; 14881 total bbls fluid pumped: 14464 bbls fresh water and 417 bbls 15% HCL acid.
Total fluid used in treatment (bbls): 14881 Max pressure during treatment (psi): 8971
Total gas used in treatment (mcf): Fluid density (lbs/gal): 8.33
Type of gas: Number of staged intervals: 49
Total acid used in treatment (bbls): 417 Min frac gradient (psi/ft): 1.01
Recycled water used in treatment (bbls): Total flowback volume recovered (bbls): 13305
Produced water used in treatment (bbls): 14464 Disposition method for flowback: DISPOSAL
Total proppant used (lbs): 14704400 Green completions techniques utilized: True
Reason green techniques not utilized:
Tubing Size: 2.375 Tubing Setting Depth: 7440
Tubing Packer Depth: 7425 Tubing Multiple Packer:
Open Hole Top: Open Hole Bottom:
    Initial Test Data:
Test Date: 9/2/2018 Test Method: flowing
Hours Tested: 24 Gas Type: WET
Gas Disposal: SOLD
Test Type Measure
    BBLS_H2O 299    
    BBLS_OIL 445    
    BTU_GAS 1230    
    CALC_BBLS_H2O 299    
    CALC_BBLS_OIL 445    
    CALC_GOR 800    
    CALC_MCF_GAS 356    
    CASING_PRESS 8    
    GRAVITY_OIL 42    
    MCF_GAS 356    
    TUBING_PRESS 917    
    Perforation Data:
    Interval Bottom: 14874 Interval Top: 7644
    # of Holes: 1537 Hole Size: 0.42