COGIS - WELL Information

Scout Card             
 Related    Insp.
 MIT
GIS Doc   COA   Wellbore  Expanded OrdersOrders
Surface Location Data for API # 05-067-08667                               Status: PR         2/2/2002
Well Name/No: Mason #2-4 (click well name for production)
Operator: ENDURING RESOURCES LLC - 10663
Status Date: 2/2/2002 Federal or State Lease #:
FacilityID: 261957 LocationID: 326670
County: LA PLATA #067 Location: SENE  2 34N9W N PM
Field: IGNACIO BLANCO  - #38300 Elevation: 6,795 ft.
Planned Location       1490 FNL  1035 FEL Lat/Long: 37.239686/-107.817688 Lat/Long Calculated From Footages
As Drilled Location      Footages Not Available Lat/Long: 37.239689/-107.81773 Lat/Long Source: Field Measured
Wellbore Data for Sidetrack #00                                                    Status: PR         2/2/2002
Spud Date: 12/19/2001 Spud Date is: ACTUAL
Wellbore Permit  
Permit #: 012118 Expiration Date: 12/5/2002
Prop Depth/Form: 2400 Surface Mineral Owner Same: Y
Mineral Owner: FEE Surface Owner: FEE
Unit: Unit Number:
Formation and Spacing: Code: FRLDC , Formation: FRUITLAND COAL , Order: 112-158 , Unit Acreage: 320, Drill Unit: N/2
Wellbore Completed
Completion Date: 2/1/2002
Measured TD: 2382 Measured PB depth:
True Vertical TD: True Vertical PB depth: 2348
Top PZ Location:           Sec: Twp: Footage:  FL   FL Depth
Bottom Hole Location:   Sec: Twp: Footages:  FL   FL Depth
Log Types: INDUCTION LOG (ATTACHED)
Casing: String Type: SURF , Hole Size: 12.25, Size: 8.625, Top: 0, Depth: 512, Weight: 24
Cement: Sacks: 250, Top: 0, Bottom: 512, Method Grade: CBL
Casing: String Type: 1ST , Hole Size: 7.875, Size: 5.5, Top: 0, Depth: 2379, Weight: 15.5
Cement: Sacks: 387, Top: 0, Bottom: 2379, Method Grade: CBL
Formation Log Top Log Bottom Cored DSTs
FRUITLAND COAL 1935 2055 N N
Completed information for formation FRLDC                                     Status: PR         2/2/2002
1st Production Date: N/A Choke Size:
Status Date: 2/2/2002 Open Hole Completion: N
Commingled: N Production Method: 2/1/2" X 1-1/2" X 18' PUMP
Formation Name: FRUITLAND COAL Status: PR
Formation Treatment
Treatment Date: 2/1/2002    
Treatment summary: FRAC W/2000 GALS 15% HCL, 2344 BBL TOTAL WTR, 85460 # 20/40 MESH# 20/40 MESH FLEX AND
Tubing Size: 2.875 Tubing Setting Depth: 2126
Tubing Packer Depth: Tubing Multiple Packer:
Open Hole Top: Open Hole Bottom:
    Initial Test Data:
Test Date: 2/2/2002 Test Method: PUMPING
Hours Tested: 24 Gas Type: COAL GAS
Gas Disposal: SOLD
Test Type Measure
    BBLS_H2O 140    
    CALC_BBLS_H2O 140    
    CALC_BBLS_OIL 0    
    CALC_MCF_GAS 200    
    CASING_PRESS 1    
    MCF_GAS 200    
    Perforation Data:
    Interval Bottom: 2055 Interval Top: 1935
    # of Holes: 16 Hole Size: 0.4