KELLER 9

Oil // district 1 // lease#21490

op: 1859 OPERATING LLC

fields: FAIRFIELD

cum_oil

790 BBL

cum_gas

0 MCF

wells

5

production

2024-07 — 2026-03

peak_month

2024-09

-- production_history

cum_oil: 790 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

112 BBL/mo

Di (annual)

246.5%

b-factor

0.0

EUR

541 BBL

R-squared

0.329

type

exponential

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11859 OPERATING LLC12,0002024-05-06
21859 OPERATING LLC12,0002024-05-06
31859 OPERATING LLC12,0002024-05-06
41859 OPERATING LLC12,0002024-05-06
51859 OPERATING LLC12,0002024-05-06
EOF // data source: Texas Railroad Commission // 2026