TUBB -A-

Oil · District 08 · Lease #31712

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

76k BBL

Cum Gas

244k MCF

casinghead

Wells

2

Production

1993-01 — 2020-11

Peak Month

1993-05

Production History

Cum Oil: 76,410 BBL Cum Gas: 243,834 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

602 BBL/mo

Di (annual)

8.9%

b-factor

0.0

EUR

79,919 BBL

R-squared

0.803

type

exponential

Operator History (from monthly production reports)

1997-09 — 2023-05 PIONEER NATURAL RES. USA, INC. 309 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
1PIONEER NATURAL RES. USA INC.19,5251987-12-10
2PIONEER NATURAL RES. USA INC.19,5251987-12-10