WELCH TRUST 8

Oil · District 7C · Lease #18982

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

249k BBL

Cum Gas

873k MCF

casinghead

Wells

4

Production

2014-11 — 2026-04

Peak Month

2016-03

Production History

Cum Oil: 249,203 BBL Cum Gas: 873,363 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,392 BBL/mo

Di (annual)

84.9%

b-factor

0.5

EUR

253,701 BBL

R-squared

0.806

type

hyperbolic

Operator History (from monthly production reports)

2021-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 66 mo
2014-11 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 75 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4411HPIONEER NATURAL RES. USA, INC.29,3002015-11-20
3PIONEER NATURAL RES. USA, INC.111,4502014-10-08
2PIONEER NATURAL RES. USA, INC.111,5002014-08-13
1PIONEER NATURAL RES. USA, INC.211,3002014-04-16