HALSELL

Oil // district 1 // lease#2655

op: SEAGULL OPERATING CO., INC.

cum_oil

57k BBL

cum_gas

0 MCF

wells

17

production

1993-01 — 2022-08

peak_month

1993-12

-- production_history

cum_oil: 56,851 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

579 BBL/mo

Di (annual)

17.4%

b-factor

0.2

EUR

48,910 BBL

R-squared

0.868

type

hyperbolic

-- wells (17)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
709SEAGULL OPERATING CO. INC.11,8501993-05-20
907SEAGULL OPERATING CO. INC.11,8501992-06-24
908SEAGULL OPERATING CO. INC.11,8501992-06-24
906SEAGULL OPERATING CO. INC.11,8001982-08-31
7142-323-01084--------
7242-323-01085--------
7342-323-01087--------
7442-323-01092--------
7542-323-80510--------
7642-323-01088--------
7742-323-01089--------
7842-323-01091--------
90142-323-01083--------
90242-323-01095--------
90342-323-01097--------
90442-323-01082--------
90542-323-01096--------
EOF // data source: Texas Railroad Commission // 2026