GREATHOUSE -A-

Oil · District 7C · Lease #1607

Operator: STEPHENS, AUTRY C.

Cum Oil

86k BBL

Cum Gas

125k MCF

casinghead

Wells

6

Production

1993-01 — 2025-03

Peak Month

1995-10

Production History

Cum Oil: 85,725 BBL Cum Gas: 125,370 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

691 BBL/mo

Di (annual)

10.9%

b-factor

0.1

EUR

83,092 BBL

R-squared

0.694

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
1994-10 — 2000-08 STEPHENS, AUTRY C. 71 mo
1993-04 — 1994-09 PERMIAN RESOURCES, INC. 18 mo
1993-01 — 1993-03 RIDLEY & PRESTON 3 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8DIAMONDBACK E&P LLC19,2001995-07-13
7DIAMONDBACK E&P LLC29,2001995-06-30
4DIAMONDBACK E&P LLC18,4001982-01-27
342-461-00836DIAMONDBACK E&P LLC------
542-461-03680DIAMONDBACK E&P LLC------
642-461-00837DIAMONDBACK E&P LLC------