UNIVERSITY-RATLIFF W58-7B

Oil · District 7C · Lease #21429

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

315k BBL

Cum Gas

359k MCF

casinghead

Wells

1

Production

2021-07 — 2026-04

Peak Month

2022-01

Production History

Cum Oil: 314,948 BBL Cum Gas: 359,120 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

17,260 BBL/mo

Di (annual)

185.1%

b-factor

1.1

EUR

586,263 BBL

R-squared

0.844

type

hyperbolic

Operator History (from monthly production reports)

2021-07 — 2026-07 PIONEER NATURAL RES. USA, INC. 61 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HPIONEER NATURAL RES. USA, INC.110,1442021-03-04