ROSS "40"

Oil · District 7C · Lease #8658

Operator: STEPHENS, AUTRY C.

Cum Oil

18k BBL

Cum Gas

26k MCF

casinghead

Wells

2

Production

1993-01 — 1998-12

Peak Month

1995-05

Production History

Cum Oil: 18,425 BBL Cum Gas: 25,792 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

456 BBL/mo

Di (annual)

40.2%

b-factor

0.0

EUR

13,598 BBL

R-squared

0.539

type

exponential

Operator History (from monthly production reports)

2000-09 — 2008-08 ENDEAVOR ENERGY RESOURCES L.P. 96 mo
1999-02 — 2000-08 STEPHENS, AUTRY C. 19 mo
1993-01 — 1999-01 BYRD OPERATING COMPANY 73 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2ENDEAVOR ENERGY RESOURCES L.P.18,8001980-12-31
1ENDEAVOR ENERGY RESOURCES L.P.19,3001980-08-06