UNIVERSITY -A- -KO-

Oil · District 08 · Lease #12533

Operator: PIEDRA OPERATING, LLC

Fields: HUTEX (DEVONIAN)

Cum Oil

674k BBL

Cum Gas

217k MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

1997-09

Production History

Cum Oil: 674,170 BBL Cum Gas: 216,598 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,901 BBL/mo

Di (annual)

6.8%

b-factor

0.0

EUR

669,080 BBL

R-squared

0.708

type

exponential

Operator History (from monthly production reports)

2023-06 — 2026-07 OVINTIV USA INC. 38 mo

2014-10 — 2023-05 PIEDRA OPERATING, LLC 104 mo

2008-12 — 2014-09 BOPCO, L.P. 70 mo

2007-01 — 2008-11 BEPCO, L.P. 23 mo

1993-01 — 2006-12 BASS ENTERPRISES PRODUCTION CO. 168 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
3	42-003-38843	OVINTIV USA INC.	1	13,000	2001-08-03
1	42-003-05068	OVINTIV USA INC.	--	--	--
2	42-003-03082	OVINTIV USA INC.	--	--	--