COGIS - WELL Information

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Surface Location Data for API # 05-125-08949                               Status: PR         9/24/2005
Well Name/No: Otto #02-28 (click well name for production)
Operator: ROSEWOOD RESOURCES INC - 75027
Status Date: 9/24/2005 Federal or State Lease #:
FacilityID: 274105 LocationID: 304754
County: YUMA #125 Location: NWNE  28 3N47W 6 PM
Field: SHOUT  - #77456 Elevation: 4,006 ft.
Planned Location       709 FNL  1683 FEL Lat/Long: 40.203767/-102.629435 Lat/Long Source: Field Measured
As Drilled Location      Footages Not Available Lat/Long: 40.203763/-102.629466 Lat/Long Source: Field Measured
Wellbore Data for Sidetrack #00                                                    Status: PR         9/24/2005
Spud Date: 8/11/2005 Spud Date is: ACTUAL
Wellbore Permit  
Permit #: Expiration Date: 10/17/2019 5:07:15 PM
Prop Depth/Form: 3000 Surface Mineral Owner Same:
Mineral Owner: FEE Surface Owner: FEE
Unit: Unit Number:
Formation and Spacing: Code: NBRR , Formation: NIOBRARA , Order: 316-6 , Unit Acreage: 160, Drill Unit: NE4
Formation and Spacing: Code: SHSP , Formation: SHARON SPRINGS , Order: , Unit Acreage: , Drill Unit:
Casing: String Type: SURF , Hole Size: 9.625, Size: 7, Top: 0, Depth: 443, Weight: 20
Cement: Sacks: 110, Top: 0, Bottom: 445, Method Grade:
Casing: String Type: 1ST , Hole Size: 9.25, Size: 4.5, Top: 0, Depth: 2979, Weight: 10.5
Cement: Sacks: 75, Top: 1950, Bottom: 2980, Method Grade:
Wellbore Completed
Completion Date: 9/14/2005
Measured TD: 3000 Measured PB depth: 2991
True Vertical TD: 3000 True Vertical PB depth: 2991
Log Types: TRIPLE COMBO, CBL
Casing: String Type: SURF , Hole Size: 9.875, Size: 7, Top: 0, Depth: 443, Weight: 20
Cement: Sacks: 110, Top: 0, Bottom: 445, Method Grade: CALC
Casing: String Type: 1ST , Hole Size: 6.25, Size: 4.5, Top: 0, Depth: 2979, Weight: 10.5
Cement: Sacks: 75, Top: 1950, Bottom: 2980, Method Grade: CBL
Formation Log Top Log Bottom Cored DSTs
NIOBRARA 2822 2848 N N
Completed information for formation NBRR                                     Status: PR         9/24/2005
1st Production Date: N/A Choke Size: 0.219
Status Date: 9/24/2005 Open Hole Completion: N
Commingled: N Production Method: FLOWING
Formation Name: NIOBRARA Status: PR
Formation Treatment
Treatment Date: 9/14/2005    
Treatment summary: FRAC'D WITH 47,926 GALS MAVFRAC 30 W/ 83,860# 16/30 BRADY SD & 60 TONS CO2
Tubing Size: Tubing Setting Depth:
Tubing Packer Depth: Tubing Multiple Packer:
Open Hole Top: Open Hole Bottom:
    Initial Test Data:
Test Date: 9/24/2005 Test Method: FLOW
Hours Tested: 24 Gas Type: SHALE
Gas Disposal: VENTED
Test Type Measure
    BTU_GAS 1015    
    CALC_MCF_GAS 101    
    CASING_PRESS 403    
    MCF_GAS 101    
    Perforation Data:
    Interval Bottom: 2847 Interval Top: 2821
    # of Holes: 52 Hole Size: 0.41