TEXON "8"

Oil · District 7C · Lease #9541

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

24k BBL

Cum Gas

28k MCF

casinghead

Wells

1

Production

1993-01 — 2022-08

Peak Month

1994-04

Production History

Cum Oil: 24,397 BBL Cum Gas: 27,915 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

143 BBL/mo

Di (annual)

7.4%

b-factor

0.0

EUR

22,517 BBL

R-squared

0.795

type

exponential

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo

2018-08 — 2021-05 DE3 OPERATING LLC 34 mo

2003-10 — 2018-07 JM COX RESOURCES, L.P. 178 mo

1993-01 — 2003-09 COX, JOHN L. 129 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-383-31877	ARCO OIL & GAS CO.	1	7,000	1981-05-11