HOLZGRAF -A-

Oil · District 08 · Lease #32656

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

89k BBL

Cum Gas

228k MCF

casinghead

Wells

2

Production

1993-01 — 2018-12

Peak Month

2012-10

Production History

Cum Oil: 88,693 BBL Cum Gas: 228,405 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,575 BBL/mo

Di (annual)

65.7%

b-factor

0.0

EUR

47,001 BBL

R-squared

0.539

type

exponential

Operator History (from monthly production reports)

1997-09 — 2025-01 PIONEER NATURAL RES. USA, INC. 329 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.111,3002012-02-06
1PIONEER NATURAL RES. USA INC.19,5501990-05-03