MERCHANT ESTATE -17-

Oil · District 7C · Lease #4673

Operator: STEPHENS, AUTRY C.

Cum Oil

96k BBL

Cum Gas

1.5M MCF

casinghead

Wells

7

Production

1993-01 — 2026-02

Peak Month

1993-05

Production History

Cum Oil: 95,798 BBL Cum Gas: 1,482,917 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

451 BBL/mo

Di (annual)

14.7%

b-factor

0.6

EUR

62,300 BBL

R-squared

0.756

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
1993-08 — 2000-08 STEPHENS, AUTRY C. 85 mo
1993-01 — 1993-07 HOUSTON OIL & MINERALS CORP. 7 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5DIAMONDBACK E&P LLC18,5001978-08-11
6DIAMONDBACK E&P LLC18,5001978-08-11
7DIAMONDBACK E&P LLC18,5001978-08-11
8DIAMONDBACK E&P LLC18,5001978-08-11
142-383-10340DIAMONDBACK E&P LLC------
342-383-10851DIAMONDBACK E&P LLC------
442-383-10970DIAMONDBACK E&P LLC------