ROBERT WALKER UNIT ZAV B

Oil · District 01 · Lease #17827

Operator: EXCO OPERATING COMPANY, LP

Cum Oil

997k BBL

Cum Gas

353k MCF

casinghead

Wells

3

Production

2014-07 — 2026-04

Peak Month

2019-09

Production History

Cum Oil: 996,651 BBL Cum Gas: 352,665 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

40,899 BBL/mo

Di (annual)

183.4%

b-factor

1.1

EUR

1,398,456 BBL

R-squared

0.877

type

hyperbolic

Operator History (from monthly production reports)

2014-07 — 2026-07 EXCO OPERATING COMPANY, LP 145 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HEXCO OPERATING COMPANY, LP17,0002019-02-26
3HEXCO OPERATING COMPANY, LP17,0002019-02-26
1HEXCO OPERATING COMPANY, LP211,0002014-06-13