UNIVERSITY -22-

Oil · District 7C · Lease #6786

Operator: OTB OPERATING, LLC

Cum Oil

75k BBL

Cum Gas

104k MCF

casinghead

Wells

6

Production

1993-01 — 2026-04

Peak Month

2013-05

Production History

Cum Oil: 75,353 BBL Cum Gas: 104,382 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

760 BBL/mo

Di (annual)

38.2%

b-factor

1.0

EUR

71,587 BBL

R-squared

0.654

type

hyperbolic

Operator History (from monthly production reports)

2020-02 — 2026-07 OTB OPERATING, LLC 78 mo
1999-05 — 2020-01 MWS PRODUCING, INC. 249 mo
1993-02 — 1999-04 MARIAH ENERGY CORP. 75 mo
1993-01 — 1993-01 CRAIN OIL CO. 1 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6OTB OPERATING, LLC12,5002013-08-19
5OTB OPERATING, LLC12,5002012-11-09
4OTB OPERATING, LLC12,5002012-02-22
3OTB OPERATING, LLC12,5001983-09-06
142-105-30773OTB OPERATING, LLC------
242-105-30788OTB OPERATING, LLC------