COGIS - WELL Information

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Surface Location Data for API # 05-067-07788                               Status: PR         1/30/2008
Well Name/No: CLARK #7-1 (click well name for production)
Operator: ENDURING RESOURCES LLC - 10663
Status Date: 1/30/2008 Federal or State Lease #: 18706
FacilityID: 216182 LocationID: 333643
County: LA PLATA #067 Location: NWSE  7 34N8W N PM
Field: IGNACIO BLANCO  - #38300 Elevation: 6,954 ft.
Planned Location       1540 FSL  2050 FEL Lat/Long: 37.226596/-107.785076 Lat/Long Calculated From Footages
As Drilled Location      Footages Not Available Lat/Long: 37.226767/-107.785274 Lat/Long Source: Field Measured
Wellbore Data for Sidetrack #00                                                    Status: PR         1/30/2008
Wellbore Permit  
Permit #: 910019 Expiration Date: 5/9/1991
Prop Depth/Form: Surface Mineral Owner Same:
Mineral Owner: FEE Surface Owner:
Unit: Unit Number:
Formation and Spacing: Code: FRLDC , Formation: FRUITLAND COAL , Order: 60 , Unit Acreage: 320, Drill Unit: S2
Wellbore Completed
Completion Date: 1/20/1992
Measured TD: 2518 Measured PB depth: 2450
True Vertical TD: 0 True Vertical PB depth:
Casing: String Type: SURF , Hole Size: 12.25, Size: 8.625, Top: 0, Depth: 337, Weight:
Cement: Sacks: 250, Top: 0, Bottom: , Method Grade:
Casing: String Type: 1ST , Hole Size: 7.875, Size: 5.5, Top: 0, Depth: 2513, Weight:
Cement: Sacks: 0, Top: 0, Bottom: , Method Grade:
Formation Log Top Log Bottom Cored DSTs
FRUITLAND COAL 1912
PICTURED CLIFFS 2300
Completed information for formation FRLD                                     Status: CM         1/30/2008
1st Production Date: 1/22/1992 Choke Size:
Status Date: 1/30/2008 Open Hole Completion: N
Commingled: N Production Method:
Formation Name: FRUITLAND Status: CM
Formation Treatment
Treatment Date: 1/8/2008    
Treatment summary: PERFS 2033-2174 & 2252-2298 WERE ACIDIZED W/1500 GAL 15% ACETIC ACID, THEN THE PERFS WERE FRACTURED W/185400 LBS OF 20/40 BRADY SAND AND 119197 GAL FRAC FLUID. THERE ARE NO NEW PERFORATIONS.
Tubing Size: 2.875 Tubing Setting Depth: 2345
Tubing Packer Depth: Tubing Multiple Packer:
Open Hole Top: Open Hole Bottom:
    Initial Test Data:
Test Date: 1/30/2008 Test Method: PUMPING
Hours Tested: 24 Gas Type: WET
Gas Disposal: SOLD
Test Type Measure
    BBLS_H2O 120    
    BTU_GAS 1007    
    CALC_BBLS_H2O 120    
    CALC_MCF_GAS 562    
    CASING_PRESS 120    
    MCF_GAS 562    
    TUBING_PRESS 140    
    Perforation Data:
    Interval Bottom: 2298 Interval Top: 2033
    # of Holes: Hole Size:
Completed information for formation FRLDC                                     Status: PR         8/9/1993
1st Production Date: N/A Choke Size: 0.000
Status Date: 8/9/1993 Open Hole Completion:
Commingled: Production Method:
Formation Name: FRUITLAND COAL Status: PR
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 FRLDC .
No Perforation Data was found for formation FRLDC .