BUCHANAN, MRS. O. P.

Oil · District 08 · Lease #31251

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

67k BBL

Cum Gas

206k MCF

casinghead

Wells

1

Production

1993-01 — 2025-05

Peak Month

1997-06

Production History

Cum Oil: 66,702 BBL Cum Gas: 205,877 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

470 BBL/mo

Di (annual)

10.4%

b-factor

0.0

EUR

54,127 BBL

R-squared

0.422

type

exponential

Operator History (from monthly production reports)

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

2019-03 — 2021-05 DE3 OPERATING LLC 27 mo

1996-01 — 2019-02 FASKEN OIL AND RANCH, LTD. 278 mo

1993-01 — 1995-12 FASKEN, BARBARA 36 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-329-00540	FASKEN BARBARA	1	11,454	1987-05-28