WILLIAMS 21 A

Oil · District 08 · Lease #51746

Operator: DIAMONDBACK E&P LLC

Cum Oil

363k BBL

Cum Gas

1.3M MCF

casinghead

Wells

1

Production

2018-02 — 2026-04

Peak Month

2018-03

Production History

Cum Oil: 362,853 BBL Cum Gas: 1,255,670 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

24,590 BBL/mo

Di (annual)

122.7%

b-factor

0.3

EUR

343,466 BBL

R-squared

0.742

type

hyperbolic

Operator History (from monthly production reports)

2018-02 — 2026-07 DIAMONDBACK E&P LLC 102 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2WADIAMONDBACK E&P LLC29,1402017-06-28