UNIVERSITY LANDS 4-35

Oil · District 08 · Lease #45285

Operator: PIEDRA OPERATING, LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

43k BBL

Cum Gas

53k MCF

casinghead

Wells

1

Production

2013-10 — 2026-04

Peak Month

2013-11

Production History

Cum Oil: 43,480 BBL Cum Gas: 53,072 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,874 BBL/mo

Di (annual)

997.4%

b-factor

1.5

EUR

36,564 BBL

R-squared

0.572

type

hyperbolic

Operator History (from monthly production reports)

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

2018-11 — 2023-05 PIEDRA OPERATING, LLC 55 mo

2013-10 — 2018-10 CONOCOPHILLIPS COMPANY 61 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-003-45271	OVINTIV USA INC.	2	11,700	2013-04-04