TUNIS CREEK UNIV. LANDS UNIT

Oil · District 08 · Lease #29971

Operator: OSBORN HEIRS COMPANY

Cum Oil

2.6M BBL

Cum Gas

2.2M MCF

casinghead

Wells

19

Production

1993-01 — 2026-04

Peak Month

2001-07

Production History

Cum Oil: 2,553,619 BBL Cum Gas: 2,151,411 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

12,203 BBL/mo

Di (annual)

33.7%

b-factor

2.0

EUR

2,125,790 BBL

R-squared

0.868

type

hyperbolic

Operator History (from monthly production reports)

2024-11 — 2026-07 BASIN OIL & GAS OPERATING, LLC 21 mo
2021-11 — 2024-10 GREAT WESTERN DRILLING COMPANY 36 mo
1993-01 — 2021-10 OSBORN HEIRS COMPANY 346 mo

Wells (19)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
310STBASIN OIL & GAS OPERATING, LLC27,0002001-04-30
309BASIN OIL & GAS OPERATING, LLC17,1002001-03-08
308BASIN OIL & GAS OPERATING, LLC17,2002000-02-03
107BASIN OIL & GAS OPERATING, LLC17,4001986-04-25
307BASIN OIL & GAS OPERATING, LLC27,2001985-08-13
105WBASIN OIL & GAS OPERATING, LLC17,2001984-07-24
106WBASIN OIL & GAS OPERATING, LLC17,2001984-07-24
204WBASIN OIL & GAS OPERATING, LLC17,2001984-07-20
306WBASIN OIL & GAS OPERATING, LLC17,2001984-07-20
305WBASIN OIL & GAS OPERATING, LLC17,4001984-03-09
103BASIN OIL & GAS OPERATING, LLC17,2001984-02-13
304BASIN OIL & GAS OPERATING, LLC17,4001983-09-26
303BASIN OIL & GAS OPERATING, LLC17,4001983-06-14
402BASIN OIL & GAS OPERATING, LLC17,2001983-04-21
401BASIN OIL & GAS OPERATING, LLC17,4001983-03-31
102BASIN OIL & GAS OPERATING, LLC17,4001983-02-24
302BASIN OIL & GAS OPERATING, LLC27,7001983-02-18
301BASIN OIL & GAS OPERATING, LLC17,7001982-11-24
101WBASIN OIL & GAS OPERATING, LLC17,9001982-10-18