HARPER 1-12

Oil · District 08 · Lease #49339

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

336k BBL

Cum Gas

1.2M MCF

casinghead

Wells

1

Production

2017-07 — 2026-03

Peak Month

2017-08

Production History

Cum Oil: 335,652 BBL Cum Gas: 1,166,673 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,407 BBL/mo

Di (annual)

25.1%

b-factor

0.0

EUR

305,781 BBL

R-squared

0.529

type

exponential

Operator History (from monthly production reports)

2021-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 66 mo
2017-07 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 43 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2803HPIONEER NATURAL RES. USA, INC.39,2002017-02-15