DOLLIE "E"

Oil · District 7C · Lease #12590

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

23k BBL

Cum Gas

189k MCF

casinghead

Wells

1

Production

1993-01 — 2021-06

Peak Month

1993-01

Production History

Cum Oil: 23,225 BBL Cum Gas: 188,690 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

346 BBL/mo

Di (annual)

625.0%

b-factor

0.2

EUR

838 BBL

R-squared

0.829

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 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
1PIONEER NATURAL RES. USA INC.18,6251988-09-28