GAULKE OIL UNIT

Oil · District 03 · Lease #21764

Operator: TANA OIL AND GAS CORPORATION

Fields: GIDDINGS (AUSTIN CHALK-3)

Cum Oil

159k BBL

Cum Gas

1.1M MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

1993-01

Production History

Cum Oil: 158,874 BBL Cum Gas: 1,148,029 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,894 BBL/mo

Di (annual)

48.6%

b-factor

0.4

EUR

155,676 BBL

R-squared

0.615

type

hyperbolic

Operator History (from monthly production reports)

2025-06 — 2026-07 REDBUD E & P, INC. 14 mo

2019-08 — 2025-05 INEOS USA OIL & GAS LLC 70 mo

2017-09 — 2019-07 CRAWFORD HUGHES OPERATING CO. 23 mo

2008-09 — 2017-08 ENERVEST OPERATING, L.L.C. 108 mo

1999-11 — 2008-08 EMERALD OPERATING COMPANY, INC. 106 mo

1995-11 — 1999-10 ROSEWOOD RESOURCES, INC. 48 mo

1993-01 — 1995-10 TANA OIL AND GAS CORPORATION 34 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-149-32680	REDBUD E & P, INC.	3	10,000	2001-09-20
1 H	42-149-32680	REDBUD E & P, INC.	3	10,000	2001-09-20