RIO LLANO 11-10 C1

Oil · District 08 · Lease #55367

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

464k BBL

Cum Gas

620k MCF

casinghead

Wells

1

Production

2021-02 — 2026-04

Peak Month

2021-12

Production History

Cum Oil: 463,929 BBL Cum Gas: 619,644 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

13,148 BBL/mo

Di (annual)

35.4%

b-factor

0.1

EUR

495,776 BBL

R-squared

0.661

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2021-02 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 47 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
133DIAMONDBACK E&P LLC18,7702020-11-18