UNIVERSITY (S) "28"

Oil · District 08 · Lease #18513

Operator: WHITING PETROLEUM CORPORATION

Fields: FULLERTON

Cum Oil

261k BBL

Cum Gas

129k MCF

casinghead

Wells

5

Production

1993-01 — 2026-04

Peak Month

1993-03

Production History

Cum Oil: 260,594 BBL Cum Gas: 129,293 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,095 BBL/mo

Di (annual)

7.9%

b-factor

0.0

EUR

162,644 BBL

R-squared

0.651

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

2006-05 — 2023-11 ENDEAVOR ENERGY RESOURCES L.P. 211 mo

2001-11 — 2006-04 SCYTHIAN, LTD. 54 mo

1998-07 — 2001-10 TRINITY BAY OIL & GAS, INC. 40 mo

1993-01 — 1998-06 WHITING PETROLEUM CORPORATION 66 mo

Wells (5)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5	42-003-36161	OLSEN ENERGY INC.	1	8,500	1988-05-13
1	42-003-10274	OLSEN ENERGY INC.	1	8,515	1983-12-19
4	42-003-10278	OLSEN ENERGY INC.	1	7,075	1983-12-19
2	42-003-10276	OLSEN ENERGY INC.	--	--	--
3	42-003-10277	OLSEN ENERGY INC.	--	--	--