UNIVERSITY-RATLIFF W58-7E

Oil · District 7C · Lease #21430

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

324k BBL

Cum Gas

639k MCF

casinghead

Wells

1

Production

2021-06 — 2026-04

Peak Month

2023-11

Production History

Cum Oil: 323,558 BBL Cum Gas: 638,972 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

13,238 BBL/mo

Di (annual)

119.4%

b-factor

0.6

EUR

302,790 BBL

R-squared

0.846

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5HPIONEER NATURAL RES. USA, INC.110,1442021-03-16