DR. HANK

Oil · District 03 · Lease #25903

Operator: SOUTH TEXAS OPERATING COMPANY

Cum Oil

28k BBL

Cum Gas

6k MCF

casinghead

Wells

1

Production

2011-02 — 2025-12

Peak Month

2011-08

Production History

Cum Oil: 27,534 BBL Cum Gas: 6,240 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,062 BBL/mo

Di (annual)

93.8%

b-factor

0.5

EUR

26,077 BBL

R-squared

0.903

type

hyperbolic

Operator History (from monthly production reports)

2020-01 — 2026-07 SOUTH TEXAS OPERATING COMPANY 79 mo
2011-02 — 2019-12 BEXCO OPERATING, INC. 107 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1RHILL PRODUCTION CO.-WISCONSIN49,5002011-01-11