FOSTER "41"

Oil · District 08 · Lease #41925

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

44k BBL

Cum Gas

40k MCF

casinghead

Wells

1

Production

2011-10 — 2026-04

Peak Month

2012-06

Production History

Cum Oil: 44,195 BBL Cum Gas: 39,523 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,370 BBL/mo

Di (annual)

258.8%

b-factor

1.3

EUR

48,044 BBL

R-squared

0.696

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

2011-10 — 2017-05 PIONEER NATURAL RES. USA, INC. 68 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-115-33379	OVINTIV USA INC.	1	11,200	2011-03-21