ROBERT WALKER UNIT ZAV A

Oil · District 01 · Lease #17819

Operator: EXCO OPERATING COMPANY, LP

Cum Oil

255k BBL

Cum Gas

91k MCF

casinghead

Wells

1

Production

2014-06 — 2026-04

Peak Month

2014-10

Production History

Cum Oil: 255,146 BBL Cum Gas: 90,782 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,331 BBL/mo

Di (annual)

29.2%

b-factor

0.0

EUR

177,927 BBL

R-squared

0.632

type

exponential

Operator History (from monthly production reports)

2014-06 — 2026-07 EXCO OPERATING COMPANY, LP 146 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7HEXCO OPERATING COMPANY, LP19,0002014-06-02