UNIVERSITY 4-10

Oil // district 9 // lease#17800

op: OPAL RESOURCES OPERATING CO.,LLC

cum_oil

38k BBL

cum_gas

0 MCF

wells

3

production

2012-02 — 2019-04

peak_month

2013-05

-- production_history

cum_oil: 38,047 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,024 BBL/mo

Di (annual)

509.1%

b-factor

1.7

EUR

76,326 BBL

R-squared

0.606

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1OPAL RESOURCES OPERATING CO.,LLC413,0002019-01-14
1AOPAL RESOURCES OPERATING CO.,LLC413,0002019-01-14
2OPAL RESOURCES OPERATING CO.,LLC313,0002019-01-14
EOF // data source: Texas Railroad Commission // 2026