COGIS - WELL Information

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Surface Location Data for API # 05-045-12159                               Status: PR         3/11/2007
Well Name/No: DEVER #A3 (click well name for production)
Operator: URSA OPERATING COMPANY LLC - 10447
Status Date: 3/11/2007 Federal or State Lease #:
FacilityID: 284376 LocationID: 311676
County: GARFIELD #045 Location: SWSE  18 6S92W 6 PM
Field: MAMM CREEK  - #52500 Elevation: 5,571 ft.
Planned Location       1009 FSL  1790 FWL Lat/Long: 39.522112/-107.708721 Lat/Long Source: Field Measured
As Drilled Location      Footages Not Available Lat/Long: 39.522111/-107.708723 Lat/Long Source: Field Measured
Wellbore Data for Sidetrack #00                                                    Status: PR         3/11/2007
Spud Date: 11/7/2006 Spud Date is: ACTUAL
Wellbore Permit   DIRECTIONAL
Permit #: 20060877 Expiration Date: 4/19/2007
Prop Depth/Form: 7953 Surface Mineral Owner Same: N
Mineral Owner: FEE Surface Owner: FEE
Unit: Unit Number:
Formation and Spacing: Code: ILES , Formation: ILES , Order: 191-25 , Unit Acreage: 260, Drill Unit: S/2
Formation and Spacing: Code: WMFK , Formation: WILLIAMS FORK , Order: 191-13 , Unit Acreage: 260, Drill Unit: S2
Wellbore Completed
Completion Date: 1/15/2007
Measured TD: 8731 Measured PB depth: 8686
True Vertical TD: 8570 True Vertical PB depth: 8524
Top PZ Location:           Sec: 18 Twp: 6S 93W Footage: 411 S  762 W Depth
Bottom Hole Location:   Sec: 18 Twp: 6S 93W Footages: 411 FSL  762 FWL Depth
Log Types: TRIPLE COMBO (NEUTRON / DENSITY / INDUCTION)
Casing: String Type: CONDUCTOR , Hole Size: 24, Size: 16, Top: 0, Depth: 60, Weight:
Cement: Sacks: , Top: 0, Bottom: 60, Determination Method: CALC
Casing: String Type: SURF , Hole Size: 12.25, Size: 8.625, Top: 0, Depth: 936, Weight: 24
Cement: Sacks: 422, Top: 0, Bottom: 944, Determination Method: CALC
Casing: String Type: 1ST , Hole Size: 7.875, Size: 5.5, Top: 0, Depth: 8725, Weight: 17
Cement: Sacks: 970, Top: 3400, Bottom: 8731, Determination Method: CBL
Formation Log Top Log Bottom Cored DSTs
WILLIAMS FORK 3937 N N
CAMEO 6629 N N
ROLLINS 7646 N N
COZZETTE 8220 N N
CORCORAN 8476 N N
Completed information for formation COZZ                                     Status: PR         3/11/2007
1st Production Date: 2/22/2007 Choke Size:
Status Date: 3/11/2007 Open Hole Completion: N
Commingled: Y Production Method:
Formation Name: COZZETTE Status: PR
Formation Treatment
Treatment Date: 2/5/2007    
Treatment summary: CZ-CR - FRAC WITH 15,446 BBLS OF 2% KCL, 363,000 LBS OF 30/70 SAND 183,300 LBS 20/40 SAND
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 COZZ .
    Perforation Data:
    Interval Bottom: 8365 Interval Top: 8224
    # of Holes: 364 Hole Size: 0.42
Completed information for formation CRCRN                                     Status: PR         3/11/2007
1st Production Date: 2/22/2007 Choke Size:
Status Date: 3/11/2007 Open Hole Completion: N
Commingled: Y Production Method:
Formation Name: CORCORAN Status: PR
Formation Treatment
Treatment Date: 2/5/2007    
Treatment summary: CZ-CR FRAC WITH 15,446 BBLS OF 2% KCL. 363,000 LBS OF 30/70 SAND 183,300 LBS 20/40 SAND
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 CRCRN .
    Perforation Data:
    Interval Bottom: 8610 Interval Top: 8478
    # of Holes: 364 Hole Size: 0.42
Completed information for formation CZ-CR                                     Status: CM         3/11/2007
1st Production Date: 2/22/2007 Choke Size: 0.344
Status Date: 3/11/2007 Open Hole Completion: N
Commingled: Y Production Method:
Formation Name: COZZETTE-CORCORAN Status: CM
Formation Treatment
Treatment Date: 2/5/2007    
Treatment summary: CORC-COZZ FRAC WITH 15,446 BBLS OF 2% KCL, 363,000 BLS OF 30/70 SAND AND 183,300 BLS 20/40 SAND
Tubing Size: 2.375 Tubing Setting Depth: 7945
Tubing Packer Depth: Tubing Multiple Packer:
Open Hole Top: Open Hole Bottom:
    Initial Test Data:
Test Date: 3/11/2007 Test Method: FLOWING
Hours Tested: 24 Gas Type: WET
Gas Disposal: SOLD
Test Type Measure
    BBLS_H2O 566    
    CALC_BBLS_H2O 566    
    CALC_MCF_GAS 2212    
    CASING_PRESS 1746    
    MCF_GAS 2212    
    TUBING_PRESS 1051    
    Perforation Data:
    Interval Bottom: 8610 Interval Top: 8284
    # of Holes: 364 Hole Size: 0.42
Completed information for formation WFCM                                     Status: PR         3/11/2007
1st Production Date: 2/22/2007 Choke Size:
Status Date: 3/11/2007 Open Hole Completion: N
Commingled: Y Production Method:
Formation Name: WILLIAMS FORK - CAMEO Status: PR
Formation Treatment
Treatment Date: 2/8/2007    
Treatment summary: FRAC'D W/ 33,614 BBLS OF 2% KCL, 692,200 LBS OF 30/70 SAND AND 474,100 LBS 20/40 SAND
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 WFCM .
    Perforation Data:
    Interval Bottom: 7631 Interval Top: 6672
    # of Holes: 792 Hole Size: 0.42
Completed information for formation WFILS                                     Status: CM         3/11/2007
1st Production Date: 2/22/2007 Choke Size: 0.344
Status Date: 3/11/2007 Open Hole Completion: N
Commingled: N Production Method:
Formation Name: WILLIAMS FORK-ILES Status: CM
Formation Treatment
Treatment Date: 2/5/2007    
Treatment summary:
Tubing Size: 2.375 Tubing Setting Depth: 7945
Tubing Packer Depth: Tubing Multiple Packer:
Open Hole Top: Open Hole Bottom:
    Initial Test Data:
Test Date: 3/11/2007 Test Method: FLOWING
Hours Tested: 24 Gas Type: WET
Gas Disposal: SOLD
Test Type Measure
    BBLS_H2O 566    
    BTU_GAS 1055    
    CALC_BBLS_H2O 566    
    CALC_GOR 0    
    CALC_MCF_GAS 2212    
    CASING_PRESS 1746    
    MCF_GAS 2212    
    TUBING_PRESS 1051    
    Perforation Data:
    Interval Bottom: 8610 Interval Top: 6672
    # of Holes: 1156 Hole Size: 0.42