WELCH TRUST 8-7-E

Oil · District 7C · Lease #20376

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

852k BBL

Cum Gas

3.8M MCF

casinghead

Wells

2

Production

2019-03 — 2026-04

Peak Month

2020-03

Production History

Cum Oil: 851,895 BBL Cum Gas: 3,834,964 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

22,100 BBL/mo

Di (annual)

37.0%

b-factor

0.1

EUR

797,423 BBL

R-squared

0.732

type

hyperbolic

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 (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4209HPIONEER NATURAL RES. USA, INC.28,9802018-07-23
4309HPIONEER NATURAL RES. USA, INC.28,9352018-07-23