MATTHEWS-TECUMSEH 109

Oil · District 7B · Lease #26658

Operator: TDC ENGINEERING, INC.

Fields: THROCKMORTON, S. (CADDO)

Cum Oil

39k BBL

Cum Gas

81k MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1993-04

Production History

Cum Oil: 38,672 BBL Cum Gas: 80,876 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,030 BBL/mo

Di (annual)

81.5%

b-factor

0.6

EUR

33,536 BBL

R-squared

0.855

type

hyperbolic

Operator History (from monthly production reports)

2024-04 — 2026-07 GOOPCO, INC. 28 mo

2023-10 — 2024-03 RAM OIL AND GAS, INC. 6 mo

2015-05 — 2023-09 GOOPCO, INC. 101 mo

2014-05 — 2015-04 BORDERLINE OPERATING CORP. 12 mo

2013-07 — 2014-04 TDC ENGINEERING, INC. 10 mo

1993-01 — 2013-06 ADKINS, R. L. CORP. 246 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-447-35291	GOOPCO, INC.	1	4,999	1992-08-05