DONOVAN -D

Oil · District 08 · Lease #31955

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

140k BBL

Cum Gas

490k MCF

casinghead

Wells

3

Production

1993-01 — 2024-06

Peak Month

2014-05

Production History

Cum Oil: 140,235 BBL Cum Gas: 490,398 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,180 BBL/mo

Di (annual)

79.0%

b-factor

0.6

EUR

39,533 BBL

R-squared

0.743

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 (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA INC.111,1002012-05-17
1PIONEER NATURAL RES. USA INC.19,1501988-06-02
2PIONEER NATURAL RES. USA INC.19,1501988-06-02