JEFFERSON ISLAND Field Activity and Well Summary

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Total wells

519
JEFFERSON ISLAND field

Drill activity

—
drill dates not in our copy of this source

The JEFFERSON ISLAND oil & gas field in Louisiana contains 519 wells on file.

Top operators: TEXACO, INC., CONTINENTAL RESOURCES INC., and others.

Most recent well: JEFFERSON ISLAND SALT MINES, operated by CONTINENTAL RESOURCES INC. — last updated October 2025.

JEFFERSON ISLAND field coverage

Parishes the JEFFERSON ISLAND field intersects.

Calcasieu ParishUnion ParishTangipahoa ParishCaldwell ParishTensas ParishJackson ParishGrant ParishLincoln ParishJefferson Davis ParishLafayette ParishVERMILION — 34 wellsEast Carroll ParishEast Feliciana ParishSt. Bernard ParishIberville ParishRichland ParishSt. Martin ParishClaiborne ParishEvangeline ParishSt. Landry ParishPointe Coupee ParishLaSalle ParishWebster ParishSt. James ParishPlaquemines ParishMorehouse ParishRapides ParishAvoyelles ParishWinn ParishVernon ParishCatahoula ParishAssumption ParishDe Soto ParishCaddo ParishRed River ParishWashington ParishSabine ParishJefferson ParishSt. Tammany ParishCameron ParishEast Baton Rouge ParishIBERIA — 485 wellsNatchitoches ParishTerrebonne ParishBienville ParishBossier ParishAllen ParishOuachita ParishSt. John the Baptist ParishSt. Helena ParishWest Feliciana ParishSt. Mary ParishLafourche ParishWest Carroll ParishConcordia ParishLivingston ParishWest Baton Rouge ParishMadison ParishOrleans ParishAscension ParishAcadia ParishSt. Charles ParishBeauregard ParishFranklin Parish
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Recent wells

Well Name Parish Last activity Updates Operator API
JEFFERSON ISLAND SALT MINES IBERIA 2025-10-13 CONTINENTAL RESOURCES INC. 17045212300000
JEFF ISLAND S&H LLC SWD VERMILION 2025-10-02 JEFFERSON ISLAND STORAGE & HUB L.L.C. 17113882250000
JEFF ISLAND S&H LLC SL 14638 IBERIA 2025-09-26 JEFFERSON ISLAND STORAGE & HUB L.L.C. 17045881310000
JEFF ISLAND S&H LLC SL 14638 IBERIA 2025-09-26 JEFFERSON ISLAND STORAGE & HUB L.L.C. 17045881320000
JEFFERSON ISLAND SALT MINES IBERIA 2025-05-13 CONTINENTAL RESOURCES INC. 17045213020000
CRIS R RA SUA;NUNEZ ETAL IBERIA 2024-11-01 SQUARE MILE ENERGY, L.L.C. 17045213640000
DISC 1 RB SUA;DELAHOUSSAYE IBERIA 2023-10-11 SQUARE MILE ENERGY, L.L.C. 17045213630000
CRIS R RA SUA;NUNEZ ETAL IBERIA 2023-01-05 SQUARE MILE ENERGY, L.L.C. 17045213620000
JEFFERSON ISLAND SALT MINES IBERIA 2022-06-01 CONTINENTAL RESOURCES INC. 17045212840000
JEFFERSON ISLAND SALT MINES IBERIA 2020-08-12 CONTINENTAL RESOURCES INC. 17045006290000

Top Operators in the JEFFERSON ISLAND field by total wells

TEXACO, INC.44CONTINENTAL RESOURCES INC.21JEFFERSON ISLAND STORAGE & HUB L.L.C.10ALLIANCE RESOURCES (USA), INC.9WILL-DRILL PRODUCTION CO. INC.8LA. LAND & EXPL. CO.6HANVEY PRODUCTION CO., INC.5C & K PETROLEUM, INC.4PERRY R. BASS3HAWTHORNE OIL & GAS CORP.3

Operators: Texaco, Inc., Continental Resources Inc., Jefferson Island Storage & Hub L.l.c., Alliance Resources (Usa), Inc., Will-Drill Production Co. Inc., La. Land & Expl. Co., Hanvey Production Co., Inc., C & K Petroleum, Inc., Perry R. Bass, Hawthorne Oil & Gas Corp..

Parishes Intersected by the JEFFERSON ISLAND field

IBERIA485VERMILION34
IBERIA
VERMILION

Other Major Fields in Louisiana most active by total wells

Compare the JEFFERSON ISLAND field against the other busiest oil and gas fields in Louisiana: