DUSEK 44

Oil · District 7C · Lease #17858

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

1.0M BBL

Cum Gas

4.5M MCF

casinghead

Wells

12

Production

2012-01 — 2026-04

Peak Month

2014-05

Production History

Cum Oil: 1,005,792 BBL Cum Gas: 4,451,888 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

21,603 BBL/mo

Di (annual)

40.2%

b-factor

0.3

EUR

911,163 BBL

R-squared

0.939

type

hyperbolic

Operator History (from monthly production reports)

2021-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 66 mo
2012-01 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 109 mo

Wells (12)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HUPIONEER NATURAL RES. USA, INC.211,0002014-10-03
1HAPIONEER NATURAL RES. USA, INC.29,6502014-07-21
1HBPIONEER NATURAL RES. USA, INC.110,0002013-12-10
9PIONEER NATURAL RES. USA, INC.113,0002012-10-29
8PIONEER NATURAL RES. USA, INC.113,0002012-09-13
7PIONEER NATURAL RES. USA, INC.113,0002012-07-23
1PIONEER NATURAL RES. USA, INC.112,0002011-10-07
2PIONEER NATURAL RES. USA, INC.112,0002011-10-07
3PIONEER NATURAL RES. USA, INC.213,0002011-10-07
4PIONEER NATURAL RES. USA, INC.213,0002011-10-07
5PIONEER NATURAL RES. USA, INC.112,0002011-10-07
6PIONEER NATURAL RES. USA, INC.213,0002011-10-07