BIRKHEAD

Oil · District 08 · Lease #33015

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

98k BBL

Cum Gas

402k MCF

casinghead

Wells

2

Production

1993-01 — 2022-10

Peak Month

2015-04

Production History

Cum Oil: 97,795 BBL Cum Gas: 402,234 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,203 BBL/mo

Di (annual)

457.0%

b-factor

1.6

EUR

78,657 BBL

R-squared

0.701

type

hyperbolic

Operator History (from monthly production reports)

1997-09 — 2026-01 PIONEER NATURAL RES. USA, INC. 341 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA INC.111,6002014-05-22
1PIONEER NATURAL RES. USA INC.19,6001990-12-17