TUMBLEWEED FOSTER UNIT

Oil · District 8A · Lease #66002

Operator: SAMSON RESOURCES COMPANY

Cum Oil

257k BBL

Cum Gas

2k MCF

casinghead

Wells

10

Production

1993-01 — 2020-02

Peak Month

1993-01

Production History

Cum Oil: 257,008 BBL Cum Gas: 2,102 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,612 BBL/mo

Di (annual)

25.4%

b-factor

0.4

EUR

265,271 BBL

R-squared

0.879

type

hyperbolic

Operator History (from monthly production reports)

2016-01 — 2026-07 RIDGLEA ENERGY I, LLC 127 mo
2014-12 — 2015-12 RIDGLEA ENERGY, LLC 13 mo
1998-12 — 2014-11 LALOC 192 mo
1996-08 — 1998-11 SAMSON LONE STAR LP 28 mo
1995-04 — 1996-07 SAMSON HYDROCARBONS COMPANY 16 mo
1994-11 — 1995-03 SAMSON RESOURCES COMPANY 5 mo
1993-01 — 1994-10 ORYX ENERGY COMPANY 22 mo

Wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
U 1ARIDGLEA ENERGY I LLC14,5001987-04-29
A 4RIDGLEA ENERGY I, LLC45,0001986-09-12
7CLEAR FORK INCORPORATED14,7001986-05-23
8CLEAR FORK INCORPORATED14,7001986-05-23
12CLEAR FORK INCORPORATED24,7001986-05-21
6CLEAR FORK INCORPORATED14,7001986-05-19
4RIDGLEA ENERGY I, LLC24,3001986-02-21
3CLEAR FORK INCORPORATED24,2001985-10-30
A 1SUN EXPLORATION & PRODUCTION CO.24,5001985-09-11
1CLEAR FORK INCORPORATED14,0001984-10-29