NALLEY

Oil · District 7C · Lease #14169

Operator: STEPHENS, AUTRY C.

Cum Oil

138k BBL

Cum Gas

1.1M MCF

casinghead

Wells

5

Production

1995-11 — 2026-04

Peak Month

2012-10

Production History

Cum Oil: 138,237 BBL Cum Gas: 1,130,212 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,155 BBL/mo

Di (annual)

143.0%

b-factor

0.9

EUR

129,559 BBL

R-squared

0.879

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
1995-11 — 2000-08 STEPHENS, AUTRY C. 58 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5DIAMONDBACK E&P LLC112,0002011-10-11
4DIAMONDBACK E&P LLC112,0002011-08-25
2DIAMONDBACK E&P LLC210,0002010-02-22
3DIAMONDBACK E&P LLC110,0002010-02-22
142-383-11111DIAMONDBACK E&P LLC------