SOUTHALL

Oil · District 7B · Lease #28218

Operator: TDC ENGINEERING, INC.

Cum Oil

96k BBL

Cum Gas

34k MCF

casinghead

Wells

4

Production

1997-09 — 2026-04

Peak Month

2003-05

Production History

Cum Oil: 95,750 BBL Cum Gas: 33,936 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,467 BBL/mo

Di (annual)

197.0%

b-factor

1.0

EUR

41,123 BBL

R-squared

0.605

type

hyperbolic

Operator History (from monthly production reports)

2019-06 — 2026-07 L.C.S. PRODUCTION COMPANY 86 mo
2016-01 — 2019-05 RMB OPERATING LLC 41 mo
2013-07 — 2015-12 TDC ENGINEERING, INC. 30 mo
1997-09 — 2013-06 ADKINS, R. L. CORP. 190 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1L.C.S. PRODUCTION COMPANY24,9992020-09-08
2L.C.S. PRODUCTION COMPANY24,5002020-09-08
4L.C.S. PRODUCTION COMPANY24,9992019-03-06
3L.C.S. PRODUCTION COMPANY14,9992001-05-21