DUSEK

Oil · District 7C · Lease #12542

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

54k BBL

Cum Gas

335k MCF

casinghead

Wells

1

Production

1993-01 — 2019-02

Peak Month

1994-03

Production History

Cum Oil: 54,080 BBL Cum Gas: 335,095 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

388 BBL/mo

Di (annual)

7.7%

b-factor

0.0

EUR

59,557 BBL

R-squared

0.917

type

exponential

Operator History (from monthly production reports)

1997-09 — 2020-07 PIONEER NATURAL RES. USA, INC. 275 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.19,3501988-06-20