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Oil // district 1 // lease#21441

op: 1859 OPERATING LLC

fields: CHICON LAKE

cum_oil

2k BBL

cum_gas

0 MCF

wells

9

production

2024-04 — 2026-03

peak_month

2024-04

-- production_history

cum_oil: 1,806 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

170 BBL/mo

Di (annual)

161.2%

b-factor

0.8

EUR

4,073 BBL

R-squared

0.497

type

hyperbolic

-- wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
81859 OPERATING LLC11,0002023-08-18
91859 OPERATING LLC11,0002023-08-18
31859 OPERATING LLC11,0002023-08-16
41859 OPERATING LLC11,0002023-08-16
51859 OPERATING LLC11,0002023-08-16
61859 OPERATING LLC11,0002023-08-16
71859 OPERATING LLC11,0002023-08-16
11859 OPERATING LLC11,0002023-08-15
21859 OPERATING LLC11,0002023-08-15
EOF // data source: Texas Railroad Commission // 2026