VIPER FOSTER B

Oil · District 08 · Lease #54837

Operator: SM ENERGY COMPANY

Cum Oil

505k BBL

Cum Gas

643k MCF

casinghead

Wells

1

Production

2020-04 — 2026-04

Peak Month

2020-12

Production History

Cum Oil: 505,071 BBL Cum Gas: 642,718 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

12,321 BBL/mo

Di (annual)

31.4%

b-factor

0.0

EUR

470,966 BBL

R-squared

0.360

type

exponential

Operator History (from monthly production reports)

2020-04 — 2026-07 SM ENERGY COMPANY 76 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4545WASM ENERGY COMPANY19,0002019-12-06