DORA ROBERTS RANCH UNIT

Oil · District 08 · Lease #15850

Operator: OXY USA INC.

Cum Oil

26k BBL

Cum Gas

837k MCF

casinghead

Wells

18

Production

1993-01 — 1995-09

Peak Month

1995-07

Production History

Cum Oil: 26,240 BBL Cum Gas: 837,217 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,347 BBL/mo

Di (annual)

195.5%

b-factor

1.6

EUR

78,101 BBL

R-squared

0.711

type

hyperbolic

Operator History (from monthly production reports)

1993-01 — 1995-12 OXY USA INC. 36 mo

Wells (18)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
502 CCONTINENTAL RESOURCES, INC.213,3462013-05-02
4212 CCONTINENTAL RESOURCES, INC.213,0001997-10-28
4105CONTINENTAL RESOURCES, INC.213,0791994-06-23
4214 CCONTINENTAL RESOURCES, INC.113,3781992-07-21
404CONTINENTAL RESOURCES, INC.112,1751992-03-17
4210OXY USA INC.211,9251991-06-17
410CONTINENTAL RESOURCES INC.113,1701986-03-04
503CONTINENTAL RESOURCES, INC.112,2001984-06-21
902CONTINENTAL RESOURCES, INC.113,3011984-06-21
4102 COXY USA INC.113,1271983-12-06
3SCONTINENTAL RESOURCES, INC.310,8501983-06-21
1003 T42-329-00196CONTINENTAL RESOURCES, INC.------
406 C42-329-00429CONTINENTAL RESOURCES, INC.------
411 C42-329-00392CONTINENTAL RESOURCES, INC.------
412 C42-329-00384CONTINENTAL RESOURCES, INC.------
4202 L42-329-02049CONTINENTAL RESOURCES, INC.------
4211 C42-329-00412CONTINENTAL RESOURCES, INC.------
901 C42-329-02034OXY USA INC.------