GRAY

Oil · District 7B · Lease #13120

Operator: R & B ENERGY CO.

Cum Oil

1k BBL

Cum Gas

36k MCF

casinghead

Wells

3

Production

1993-01 — 1998-10

Peak Month

1993-05

Production History

Cum Oil: 1,125 BBL Cum Gas: 36,272 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

78 BBL/mo

Di (annual)

121.2%

b-factor

0.3

EUR

1,049 BBL

R-squared

0.872

type

hyperbolic

Operator History (from monthly production reports)

1999-12 — 2011-09 EASTLAND OPERATING, L.L.C. 142 mo
1999-02 — 1999-11 R & B ENERGY CO. 10 mo
1998-07 — 1999-01 GRUY PETROLEUM MANAGEMENT CO. 7 mo
1993-01 — 1998-06 MUSTANG OIL & GAS CORPORATION 66 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3EASTLAND OPERATING L.L.C.13,7001980-12-22
2EASTLAND OPERATING L.L.C.13,6001978-11-20
142-133-30405EASTLAND OPERATING L.L.C.------