SOUTH TEXAS SYNDICATE -B-

Oil // district 1 // lease#4971

op: WHITING PETROLEUM CORPORATION

cum_oil

363k BBL

cum_gas

0 MCF

wells

12

production

1993-01 — 2026-03

peak_month

1993-01

-- production_history

cum_oil: 362,657 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

6,765 BBL/mo

Di (annual)

36.0%

b-factor

0.4

EUR

360,024 BBL

R-squared

0.971

type

hyperbolic

-- wells (12)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
48WHITING OIL AND GAS CORPORATION22,3502005-02-22
44WHITING OIL AND GAS CORPORATION22,3502005-02-18
39WHITING OIL AND GAS CORPORATION22,4002004-12-15
47WHITING OIL AND GAS CORPORATION22,3502004-12-15
50AMERICAN COMETRA, INC.12,3501991-12-19
51AMERICAN COMETRA, INC.12,3501991-12-19
43AMERICAN COMETRA, INC.12,3501991-10-25
42AMERICAN COMETRA, INC.12,4001991-04-30
38AMERICAN COMETRA, INC.12,4001990-11-14
34AMERICAN COMETRA, INC.12,3501990-07-30
2242-283-30259--------
2342-283-30314--------
EOF // multi-state drilling data platform // 2026