ROBERTS, DORA

Oil · District 10 · Lease #2803

Operator: SHERIDAN PRODUCTION COMPANY, LLC

Cum Oil

1.8M BBL

Cum Gas

0 MCF

Wells

67

Production

1993-01 — 2012-07

Peak Month

1997-07

Production History

Cum Oil: 1,824,591 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

12,170 BBL/mo

Di (annual)

7.9%

b-factor

1.1

EUR

3,038,384 BBL

R-squared

0.857

type

hyperbolic

Wells (67)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
47ORYX ENERGY COMPANY13,1001997-09-11
40ORYX ENERGY COMPANY13,3001997-01-31
41ORYX ENERGY COMPANY13,3001997-01-31
16ORYX ENERGY COMPANY13,0001997-01-22
42ORYX ENERGY COMPANY13,3001996-12-31
43 LORYX ENERGY COMPANY13,3001996-12-31
43LORYX ENERGY COMPANY13,3001996-12-31
43 UORYX ENERGY COMPANY13,3001996-12-31
43UORYX ENERGY COMPANY13,3001996-12-31
44 LORYX ENERGY COMPANY13,3001996-12-31
44LORYX ENERGY COMPANY13,3001996-12-31
44 UORYX ENERGY COMPANY13,3001996-12-31
44UORYX ENERGY COMPANY13,3001996-12-31
45 LORYX ENERGY COMPANY13,3001996-12-31
45LORYX ENERGY COMPANY13,3001996-12-31
45 UORYX ENERGY COMPANY13,3001996-12-31
45UORYX ENERGY COMPANY13,3001996-12-31
46 LORYX ENERGY COMPANY13,3001996-12-31
46LORYX ENERGY COMPANY13,3001996-12-31
46 UORYX ENERGY COMPANY13,3001996-12-31
46UORYX ENERGY COMPANY13,3001996-12-31
39ORYX ENERGY COMPANY13,3001996-03-25
35ORYX ENERGY COMPANY13,3001996-01-26
35LORYX ENERGY COMPANY13,3001996-01-26
35UORYX ENERGY COMPANY13,3001996-01-26
35WORYX ENERGY COMPANY13,3001996-01-26
34ORYX ENERGY COMPANY13,3001996-01-25
34LORYX ENERGY COMPANY13,3001996-01-25
34UORYX ENERGY COMPANY13,3001996-01-25
34WORYX ENERGY COMPANY13,3001996-01-25
38ORYX ENERGY COMPANY13,3001995-11-28
36ORYX ENERGY COMPANY13,3001995-11-01
36LORYX ENERGY COMPANY13,3001995-11-01
36UORYX ENERGY COMPANY13,3001995-11-01
37ORYX ENERGY COMPANY13,3001995-11-01
37LORYX ENERGY COMPANY13,3001995-11-01
37UORYX ENERGY COMPANY13,3001995-11-01
27ORYX ENERGY COMPANY13,0001995-09-14
20ORYX ENERGY COMPANY12,8001994-01-24
33ORYX ENERGY COMPANY13,3001993-11-23
33LORYX ENERGY COMPANY13,3001993-11-23
33UORYX ENERGY COMPANY13,3001993-11-23
32ORYX ENERGY COMPANY13,5001993-06-14
32LORYX ENERGY COMPANY13,5001993-06-14
32UORYX ENERGY COMPANY13,5001993-06-14
32WORYX ENERGY COMPANY13,5001993-06-14
32WEORYX ENERGY COMPANY13,5001993-06-14
19ORYX ENERGY COMPANY13,0751991-09-23
10ROYAL OIL & GAS CORP.12,6991987-05-13
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