CYPERT C 57-51

Oil · District 08 · Lease #49927

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

305k BBL

Cum Gas

998k MCF

casinghead

Wells

1

Production

2018-03 — 2026-04

Peak Month

2019-03

Production History

Cum Oil: 304,968 BBL Cum Gas: 998,480 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

14,532 BBL/mo

Di (annual)

156.5%

b-factor

0.5

EUR

217,388 BBL

R-squared

0.802

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2018-03 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 82 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
231DIAMONDBACK E&P LLC111,0002017-07-31