WELCH TRUST 8-7-E

Oil · District 7C · Lease #20772

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

173k BBL

Cum Gas

655k MCF

casinghead

Wells

1

Production

2019-03 — 2026-04

Peak Month

2019-06

Production History

Cum Oil: 172,600 BBL Cum Gas: 655,155 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,633 BBL/mo

Di (annual)

27.1%

b-factor

0.0

EUR

160,648 BBL

R-squared

0.412

type

exponential

Operator History (from monthly production reports)

2021-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 66 mo
2019-03 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 23 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4409HPIONEER NATURAL RES. USA, INC.39,5302016-11-10