ATRELLE -31-

Oil · District 08 · Lease #35858

Operator: STEPHENS, AUTRY C.

Cum Oil

66k BBL

Cum Gas

139k MCF

casinghead

Wells

1

Production

1998-02 — 2023-10

Peak Month

1999-08

Production History

Cum Oil: 66,279 BBL Cum Gas: 138,820 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

708 BBL/mo

Di (annual)

35.3%

b-factor

0.7

EUR

53,774 BBL

R-squared

0.528

type

hyperbolic

Operator History (from monthly production reports)

2000-09 — 2024-10 ENDEAVOR ENERGY RESOURCES L.P. 290 mo
1998-02 — 2000-08 STEPHENS, AUTRY C. 31 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ENDEAVOR ENERGY RESOURCES L.P.311,0002016-10-14