TXL '21' A

Oil · District 7C · Lease #21016

Operator: SM ENERGY COMPANY

Cum Oil

34k BBL

Cum Gas

194k MCF

casinghead

Wells

4

Production

2020-08 — 2026-04

Peak Month

2020-08

Production History

Cum Oil: 34,401 BBL Cum Gas: 194,000 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,270 BBL/mo

Di (annual)

73.3%

b-factor

0.2

EUR

25,916 BBL

R-squared

0.675

type

hyperbolic

Operator History (from monthly production reports)

2020-08 — 2026-07 SM ENERGY COMPANY 72 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3SM ENERGY COMPANY112,0002013-02-27
11WINN OPERATING, LLC112,0002013-01-30
2WINN OPERATING, LLC112,0002012-05-08
15SM ENERGY COMPANY112,0002012-02-10