WHITAKER 21-28 UNIT

Oil · District 08 · Lease #47701

Operator: SM ENERGY COMPANY

Cum Oil

1.9M BBL

Cum Gas

3.6M MCF

casinghead

Wells

6

Production

2016-03 — 2026-04

Peak Month

2021-08

Production History

Cum Oil: 1,887,382 BBL Cum Gas: 3,588,203 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

89,338 BBL/mo

Di (annual)

261.1%

b-factor

1.3

EUR

3,114,702 BBL

R-squared

0.862

type

hyperbolic

Operator History (from monthly production reports)

2017-01 — 2026-07 SM ENERGY COMPANY 115 mo
2016-05 — 2016-12 QSTAR OPERATING LLC 8 mo
2016-03 — 2016-04 ENDEAVOR ENERGY RESOURCES L.P. 2 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2192WDSM ENERGY COMPANY110,2002022-12-14
2112JMSM ENERGY COMPANY110,0002020-06-25
2113JMSM ENERGY COMPANY110,0002020-06-25
2149WASM ENERGY COMPANY110,0002020-06-25
2183DNSM ENERGY COMPANY110,0002020-06-25
1HSM ENERGY COMPANY212,5002015-12-22