UNIVERSITY 9 -AB-

Oil · District 08 · Lease #18904

Operator: STEPHENS, AUTRY C.

Fields: BLOCK 9 (DEVONIAN)

Cum Oil

37k BBL

Cum Gas

319k MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

2015-12

Production History

Cum Oil: 36,819 BBL Cum Gas: 319,086 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

291 BBL/mo

Di (annual)

10.3%

b-factor

0.0

EUR

33,736 BBL

R-squared

0.379

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 OLSEN ENERGY INC. 19 mo

2023-12 — 2024-12 SILVER CROSS ENERGY PARTNERS LLC 13 mo

2000-09 — 2023-11 ENDEAVOR ENERGY RESOURCES L.P. 279 mo

1998-01 — 2000-08 STEPHENS, AUTRY C. 32 mo

1996-12 — 1997-12 LIVE OAK GAS COMPANY 13 mo

1993-01 — 1996-11 CITATION OIL & GAS CORP. 47 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
6	42-003-41392	OLSEN ENERGY INC.	1	14,000	2010-01-20
3	42-003-10375	OLSEN ENERGY INC.	1	11,820	1985-12-31
4	42-003-10376	OLSEN ENERGY INC.	--	--	--