FIRST NATIONAL BANK

Oil // district 11 // lease#60457

op: UNITEX OIL & GAS, L.L.C.

cum_oil

198k BBL

cum_gas

0 MCF

wells

8

production

1993-01 — 2026-03

peak_month

1994-02

-- production_history

cum_oil: 197,748 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,360 BBL/mo

Di (annual)

9.9%

b-factor

0.2

EUR

193,179 BBL

R-squared

0.960

type

hyperbolic

-- wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9AUNITEX OIL & GAS, L.L.C.13,3012019-07-08
10PEARSON SIBERT OIL CO. OF TEXAS22,5681998-12-10
1RPEARSON SIBERT OIL CO. OF TEXAS12,5501983-06-15
342-415-00376--------
4R42-415-03007--------
642-415-00238--------
742-415-00239--------
842-415-00377--------
EOF // data source: Texas Railroad Commission // 2026