RICHARDS 41

Oil · District 08 · Lease #39102

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

25k BBL

Cum Gas

19k MCF

casinghead

Wells

2

Production

2007-04 — 2026-04

Peak Month

2007-09

Production History

Cum Oil: 25,318 BBL Cum Gas: 18,664 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

482 BBL/mo

Di (annual)

60.0%

b-factor

0.6

EUR

20,723 BBL

R-squared

0.690

type

hyperbolic

Operator History (from monthly production reports)

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

2017-06 — 2023-05 PETROLEGACY ENERGY II, LLC 72 mo

2007-04 — 2017-05 PIONEER NATURAL RES. USA, INC. 122 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-317-34787	OVINTIV USA INC.	2	11,000	2006-11-29
1	42-317-34757	OVINTIV USA INC.	2	10,500	2006-09-21