HENRY SHEPHARD ETAL UNIT 1

Oil · District 03 · Lease #21455

Operator: WATER WORKS ENGINEERING, INC.

Cum Oil

13k BBL

Cum Gas

43k MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1993-02

Production History

Cum Oil: 13,371 BBL Cum Gas: 42,952 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

56 BBL/mo

Di (annual)

6.5%

b-factor

0.0

EUR

9,919 BBL

R-squared

0.595

type

exponential

Operator History (from monthly production reports)

2025-02 — 2026-07 RUSK ENERGY OPERATING LLC 18 mo
2010-03 — 2025-01 VICEROY PETROLEUM, LP 179 mo
2007-11 — 2010-02 VICEROY PETROLEUM GP, LLC 28 mo
1997-12 — 2007-10 FERGUSON-BURNS LEASING CO. 119 mo
1993-12 — 1997-11 WATER WORKS ENGINEERING, INC. 48 mo
1993-01 — 1993-11 ROSE OIL AND GAS COMPANY 11 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1RUSK ENERGY OPERATING LLC26,8001992-04-15