NAIL -E-

Oil · District 08 · Lease #27950

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

132k BBL

Cum Gas

257k MCF

casinghead

Wells

3

Production

1993-01 — 2026-03

Peak Month

1993-05

Production History

Cum Oil: 132,228 BBL Cum Gas: 257,288 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

533 BBL/mo

Di (annual)

4.8%

b-factor

0.0

EUR

120,320 BBL

R-squared

0.700

type

exponential

Operator History (from monthly production reports)

1997-09 — 2026-07 PIONEER NATURAL RES. USA, INC. 347 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3PIONEER NATURAL RES. USA, INC.19,8501984-02-10
1PIONEER NATURAL RES. USA, INC.19,7751982-12-31
2PIONEER NATURAL RES. USA, INC.19,7751982-12-31