COPE "83"

Oil · District 7C · Lease #14363

Operator: STEPHENS, AUTRY C.

Cum Oil

24k BBL

Cum Gas

118k MCF

casinghead

Wells

2

Production

1996-02 — 2026-04

Peak Month

1999-05

Production History

Cum Oil: 24,416 BBL Cum Gas: 117,528 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

606 BBL/mo

Di (annual)

133.5%

b-factor

0.6

EUR

12,475 BBL

R-squared

0.745

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2000-09 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 292 mo
1996-02 — 2000-08 STEPHENS, AUTRY C. 55 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIAMONDBACK E&P LLC18,2001996-09-13
1DIAMONDBACK E&P LLC18,2001996-01-11