ASHLEY -A-

Oil · District 08 · Lease #21968

Operator: STEPHENS, AUTRY C.

Cum Oil

97k BBL

Cum Gas

75k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

2009-11

Production History

Cum Oil: 97,127 BBL Cum Gas: 74,525 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

549 BBL/mo

Di (annual)

6.7%

b-factor

0.0

EUR

95,407 BBL

R-squared

0.337

type

exponential

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
1993-01 — 2000-08 STEPHENS, AUTRY C. 92 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIAMONDBACK E&P LLC212,0002016-09-29
142-317-30339DIAMONDBACK E&P LLC------