Blarney Castle Oil

What Blarney Castle Oil does

Blarney Castle Oil Company is a Michigan-based, family-owned petroleum marketing and convenience store operator founded in 1933 by Denny McCarthy in Bear Lake, Michigan. The company is currently in its third generation of McCarthy family ownership and operates more than 200 EZ Mart convenience stores and EZ Fresh Market locations across Michigan, stretching from Buchanan to Sault Ste. Marie. It provides multi-brand retail gasoline (BP, Marathon, Mobil, Shell, Sunoco, and Citgo), convenience merchandise, fresh prepared foods, and ATM services through the retail network, while simultaneously supplying wholesale fuel to independent gas station dealers and marinas under brands including BP, Clark, Marathon, Mobil, Shell, Spirit, Sunoco, Mitt Stop, and ValvTect Marine, plus unbranded supply.

The company's business extends well beyond retail fuel into home heating energy, commercial fuel distribution, and lubricant sales. Blarney Castle delivers propane and home heating oil to residential customers with automatic delivery scheduling, tank leasing and installation, remote wireless tank monitoring, and budget billing plans. The commercial fuels division supplies on- and off-road diesel, all gasoline grades, dyed and undyed kerosene, and marine fuel to agricultural, industrial, and commercial customers across 32 counties in Northern Michigan, with US Coast Guard certification enabling on-water deliveries. Bulk lubricant distribution covers Chevron, Petro-Canada, Shell, and VP Racing products, supported by lubrication and oil analysis services. The Blarney Castle Fleet Card program serves fleets from one vehicle to 500+ through nine branch offices with local invoicing, and is accepted nationwide via integration with Pacific Pride and Fuelman networks.

The revenue model is diversified across transaction-based and subscription-style streams: retail fuel and convenience merchandise, commercial and wholesale fuel sales, and recurring propane/heating oil delivery contracts constitute the core. The company employs more than 1,800 people, maintains nine branch offices across Northern Michigan (Alpena, Bear Lake, Cheboygan, Mancelona, Mesick, Muskegon, Reed City, Scottville, and Traverse City), and operates with no disclosed outside equity or parent-company involvement. Technology investments are limited to operational tools — remote tank monitoring, an online customer portal, and a multi-network fleet card — with no disclosed AI or advanced software capabilities.

Name

Blarney Castle Oil

Legal name

Blarney Castle Oil Company

Website

https://blarneycastleoil.com

Company type

Private

Founded year

1933

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Blarney Castle Oil Company is a Michigan-based, family-owned petroleum marketer and convenience store operator founded in 1933, serving residential, commercial, agricultural, and retail customers across Northern Michigan through 200+ EZ Mart stores, propane and heating oil delivery, commercial fuels, wholesale fuel supply, and lubricants.

Ownership category

akta.pro rank

Product category

Petroleum Distribution and Convenience Retail

NAICS

Petroleum Bulk Stations and Terminals (424710), Gasoline Stations (4571), Fuel Dealers (457210)

SIC

Wholesale-Petroleum Bulk Stations & Terminals (5171), Wholesale-Petroleum & Petroleum Products (No Bulk Stations) (5172)

akta.pro primary industry

Retail Service Station Operations (Company-Owned & Dealer-Operated) (EUALAIAA)

akta.pro secondary industries

Branded Fuels Wholesaling & Jobber Distribution (EUALAIAB), Commercial & Fleet Fueling (Cardlock, On-Site Tanks, Bulk Delivery) (EUALAIAD), Unbranded/Spot Fuels Distribution (Rack Sales) (EUALAIAC)

Keywords

• Petroleum distribution
• Convenience retail
• Propane delivery
• Fleet fueling
• Lubricant distribution

Headquarters

HQ city

Bear Lake

HQ country

United States

HQ region

North America

Offices10 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Supply Chain, Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Retail Fuel Sales: Sale of branded gasoline (BP, Marathon, Mobil, Shell, Sunoco, Citgo) through company-owned convenience stores and to independent dealers
2. Convenience Store Merchandise: Sale of convenience items including fresh foods, beverages, snacks, coffee, prepared meals, alcohol, and general merchandise through EZ Mart locations
3. Propane and Home Heating Oil: Residential delivery and service of propane and fuel oil with automatic delivery, tank leasing, and budget plan options
4. Commercial Fuels: Sale and delivery of gasoline, diesel, and kerosene to commercial, agricultural, industrial, and marine customers across 32 counties in Northern Michigan
5. Bulk Lubricant Sales: Distribution of bulk lubricants including Chevron, Petro-Canada, Shell, and VP Racing products to agricultural, commercial and industrial customers
6. Wholesale Dealer Fuel Supply: Wholesale fuel supply to independent gas station dealers and marinas throughout Michigan under multiple brand names

Distribution channels5 records

Marketing channels3 records

Core offering

Blarney Castle Oil distributes branded and unbranded petroleum products (gasoline, diesel, kerosene) and propane across Michigan, while operating more than 200 EZ Mart and EZ Fresh Market convenience stores. The company also provides residential propane and home heating oil delivery with automatic service, commercial fuel and lubricant distribution covering 32 Northern Michigan counties, wholesale fuel supply to independent dealers under multiple brands, and a nationwide-accepted fleet card program.

Product overview

Blarney Castle Oil and Propane is a Michigan-based, family-owned petroleum marketing and convenience store company founded in 1933. The company operates a multi-brand retail network of more than 200 EZ Mart convenience stores and EZ Fresh Markets across Michigan, while also providing home heating solutions (propane and fuel oil), commercial fuels for agricultural, industrial, and marine customers, wholesale dealer fuel supply under multiple brands (BP, Clark, Marathon, Mobil, Shell, Sunoco, Citgo, Spirit, Mitt Stop, ValvTect Marine), bulk lubricant sales, and a Fleet Card program. The portfolio consists of seven distinct offerings: EZ Mart Stores (convenience retail), EZ Fresh Markets (convenience-plus-grocery), Propane and Home Heating Oil Service, Commercial Fuels, Wholesale Dealer Fuel Supply, Bulk Lubricant Sales, and the Blarney Castle Fleet Card—all unified under the McCarthy family leadership with shared distribution infrastructure across nine branch offices in Northern Michigan.

Differentiator

Problem solved

Functional benefit

Products and services

• EZ Mart Stores Convenience store brand with more than 190 locations across Michigan offering branded gasoline (BP, Marathon, Mobil, Shell, Sunoco, Citgo), fresh-brewed Java Mountain Coffee, Lucky Louie's Pizza, Eisenberg Hotdogs, deli items, beverages, snacks, beer, wine, liquor in select stores, ATM services, and pre-paid gift cards to general consumers in local communities.
• EZ Fresh Markets Convenience stores combined with small-scale grocery offering, featuring a Deli and Butcher Shop with fresh meats, cheeses, freshly prepared meals, a produce department, and everyday essentials in a clean, welcoming environment for families and local shoppers.
• Propane and Home Heating Oil Service Residential propane and fuel oil delivery and service in Michigan, including automatic delivery, tank installation and leasing, remote tank monitoring, certified technicians, budget plans, price protection, 24-hour answering service, courtesy fill program, metered tickets, and emergency service for Michigan homeowners.
• Commercial Fuels Fuel supply for agricultural, commercial, industrial, and marine customers across 32 counties in Northern Michigan, including all grades of gasoline, on- and off-road diesel, Diesel Guard Premium Diesel Additives, ValvTect Marine Fuel Additives, and dyed kerosene, with tank, pump, and equipment sales, equipment lease program, remote tank monitoring, and US Coast Guard certification for on-water deliveries.
• Wholesale Dealer Fuel Supply Wholesale fuel supply to independent gas station dealers and marinas throughout Michigan under brands including BP, Clark, Marathon, Mobil, Shell, Spirit, Sunoco, Mitt Stop, and ValvTect Marine, as well as unbranded supply, with vendor relationship and product purchasing program facilitation.
• Bulk Lubricant Sales Complete line of Chevron, Petro-Canada, Shell, and VP Racing lubricants for agricultural, commercial, and industrial customers, distributed through an expanded bulk lubricant facility, with lubrication analysis, oil analysis, lubricant equipment surveys, equipment sales, and cost-effective bulk purchasing.
• Blarney Castle Fleet Card Fleet card program for fleets of one vehicle to 500+ vehicles offering nationwide purchase availability with locally invoiced and supported billing, tax-exempt capability, acceptance at company-owned stores and through Pacific Pride and Fuelman networks, and 24-hour customer service.

Named customers4 records

Segments4 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature3 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Exxon-MobilcoreGTM or Marketing PartnerBlarney Castle participates in the Exxon-Mobil Educational Alliance Grant Program, helping fund STEM education in local communities where Exxon-Mobil stores operate. The company submits schools in their Exxon-Mobil communities for monetary awards to support educational opportunities.
• Local Michigan SchoolsminorStrategic or Co-development PartnerThrough the Java Mountain School Sports Program, Blarney Castle provides local schools with 1,000 coffee cups and enough coffee beans to make approximately 1,000 cups of coffee free of charge to raise money for school programs. Over $12,000 in coffee has been supplied in the past two years.
• BPminorOthersBranded fuel supplier partnership - Blarney Castle sells BP-branded gasoline at company stores and supplies BP brand to independent dealers
• MarathonminorOthersBranded fuel supplier partnership - Blarney Castle sells Marathon-branded gasoline at company stores and supplies Marathon brand to independent dealers
• MobilminorOthersBranded fuel supplier partnership - Blarney Castle sells Mobil-branded gasoline at company stores
• ShellminorOthersBranded fuel supplier partnership - Blarney Castle sells Shell-branded gasoline at company stores and supplies Shell brand to independent dealers
• SunocominorOthersBranded fuel supplier partnership - Blarney Castle sells Sunoco-branded gasoline at company stores and supplies Sunoco brand to independent dealers
• CitgominorOthersBranded fuel supplier partnership - Blarney Castle sells Citgo-branded gasoline at company stores
• ChevronminorOthersLubricant supplier partnership - Blarney Castle offers complete line of Chevron lubricants
• VP Racing LubricantsminorOthersLubricant supplier partnership - Blarney Castle offers VP Racing lubricants to customers

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Murphy USA: Public fuel and convenience retailer with 1,750+ locations predominantly near Walmart stores. Directly comparable c-store/fuel format with similar multi-brand fuel supply strategy and small-format store economics.
• Sheetz: Family-owned convenience store and fuel retailer operating 600+ locations primarily in the Mid-Atlantic and Midwest. Most comparable peer due to similar privately-held, family-controlled model with vertically integrated fuel distribution and in-store food service.
• Wawa: Private, family-owned c-store and fuel chain with 1,000+ locations across the East Coast. Closely comparable on private family ownership, focus on fresh food and customer experience, and integration of proprietary fuel card programs.
• Casey's General Stores: Publicly traded c-store and fuel retailer with 2,500+ locations across the Midwest. Highly comparable business model combining fuel retail, prepared food, and in-store merchandise, with growing footprint in smaller Midwestern markets similar to Blarney Castle's Northern Michigan territory.
• Sunoco LP: Master limited partnership focused on fuel distribution and retail with thousands of dealer locations across the US. Closely comparable multi-brand fuel marketing and wholesale dealer supply model that mirrors Blarney Castle's wholesale dealer operations.
• Pilot Travel Centers (Berkshire Hathaway): Largest US operator of travel centers and truck stops with 875+ locations. Comparable on commercial fuel delivery, fleet card programs, and integrated retail — particularly relevant for Blarney Castle's commercial and marine fuel business.
• RaceTrac: Private family-owned c-store and fuel chain operating 750+ locations across the Southeast and Midwest. Comparable private-ownership structure, multi-brand fuel marketing, and large-format convenience stores with proprietary food offerings.

Broad incumbents

• 7-Eleven (Speedway acquisition): Global convenience store giant with 13,000+ US locations following Speedway acquisition. Overlapping fuel and c-store operations with broader geographic footprint and deeper capital base, making it a key competitive incumbent in Michigan markets.
• Marathon Petroleum: Major US petroleum refiner and parent of Speedway (sold to 7-Eleven). Functions as both a fuel supplier partner to Blarney Castle (Marathon-branded) and a competitive retail fuel incumbent in overlapping Midwest geographies.

Regional players

• Meijer: Michigan-based family-owned supercenter chain operating 250+ stores across the Midwest with integrated fuel centers. Regional competitor in Michigan convenience/fuel retail with grocery-anchored model that pressures EZ Fresh Market format.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/blarneycareers

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Blarney Castle Oil