UNIVCARLA

Oil · District 08 · Lease #40280

Operator: XTO ENERGY INC.

Cum Oil

110k BBL

Cum Gas

394k MCF

casinghead

Wells

3

Production

2010-06 — 2025-01

Peak Month

2011-04

Production History

Cum Oil: 109,574 BBL Cum Gas: 394,467 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,854 BBL/mo

Di (annual)

82.7%

b-factor

0.6

EUR

91,728 BBL

R-squared

0.806

type

hyperbolic

Operator History (from monthly production reports)

2014-11 — 2026-07 XTO ENERGY INC. 141 mo
2010-06 — 2014-10 LINN OPERATING, INC. 53 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
32NXTO ENERGY INC.111,3502010-07-29
3316XTO ENERGY INC.111,3502010-02-26
3215XTO ENERGY INC.111,3502010-02-16