LETHA JACOBY TRUST

Oil · District 7C · Lease #15321

Operator: SUBSURFACE PRODUCTION, INC.

Cum Oil

13k BBL

Cum Gas

0 MCF

Wells

1

Production

2002-11 — 2026-03

Peak Month

2003-04

Production History

Cum Oil: 13,284 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

300 BBL/mo

Di (annual)

45.8%

b-factor

0.3

EUR

11,021 BBL

R-squared

0.511

type

hyperbolic

Operator History (from monthly production reports)

2019-09 — 2026-07 OTEX LLC 83 mo
2011-07 — 2019-08 PENTERGY OPERATING, LLC 98 mo
2005-02 — 2011-06 SUBSURFACE PRODUCTION, INC. 77 mo
2002-11 — 2005-01 DAUBERT OPERATING, L.L.C. 27 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1OTEX LLC23,6002002-10-18