WILLEY ESTATE

Oil · District 08 · Lease #38843

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

46k BBL

Cum Gas

41k MCF

casinghead

Wells

1

Production

2008-05 — 2023-02

Peak Month

2008-07

Production History

Cum Oil: 45,932 BBL Cum Gas: 41,180 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,075 BBL/mo

Di (annual)

38.5%

b-factor

0.4

EUR

53,733 BBL

R-squared

0.830

type

hyperbolic

Operator History (from monthly production reports)

2008-05 — 2026-03 PIONEER NATURAL RES. USA, INC. 215 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA INC.19,8002007-12-12