WRISTEN

Oil · District 8A · Lease #67869

Operator: TDC ENGINEERING, INC.

Fields: HARRINGTON (WOLFCAMP)

Cum Oil

31k BBL

Cum Gas

75 MCF

casinghead

Wells

1

Production

1998-01 — 2026-03

Peak Month

1998-01

Production History

Cum Oil: 31,158 BBL Cum Gas: 75 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

192 BBL/mo

Di (annual)

9.2%

b-factor

0.4

EUR

32,882 BBL

R-squared

0.649

type

hyperbolic

Operator History (from monthly production reports)

2016-01 — 2026-07 RMB OPERATING LLC 127 mo

2013-07 — 2015-12 TDC ENGINEERING, INC. 30 mo

1998-01 — 2013-06 ADKINS, R. L. CORP. 186 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-115-33004	RMB OPERATING LLC	1	9,300	1997-11-18