DOLLIE "B"

Oil · District 7C · Lease #9090

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

21k BBL

Cum Gas

117k MCF

casinghead

Wells

1

Production

1993-01 — 2019-11

Peak Month

1995-07

Production History

Cum Oil: 21,437 BBL Cum Gas: 116,792 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

99 BBL/mo

Di (annual)

5.4%

b-factor

0.0

EUR

20,541 BBL

R-squared

0.323

type

exponential

Operator History (from monthly production reports)

2021-06 — 2023-11 PIONEER NATURAL RES. USA, INC. 30 mo
2020-09 — 2021-05 DE3 OPERATING LLC 9 mo
1997-09 — 2020-08 PIONEER NATURAL RES. USA, INC. 276 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA INC.18,6001981-05-14