Since 1953, Crowley has been providing marine, petroleum distribution and energy support services throughout Alaska, from the North Slope to Southcentral Alaska, along the coast and into some of the most remote inland areas, including communities along the Kuskokwim and Yukon Rivers. Today, the company maintains offices and operations across the state, with more than 650 people working to deliver a diverse portfolio of services. With a storage capacity of more than 39 million gallons, Crowley is one of the unquestioned leaders in the Alaska fuel industry, providing transportation, distribution and sales of petroleum products to more than 280 communities across the state. The company supports the energy industry on the North Slope with summer tug-and-barge sealifts of large production modules and various marine transportation services. At the southern terminus of the Trans-Alaska oil pipeline, Crowley provides tanker escort and docking services in Valdez Harbor and Prince William Sound for Alyeska Pipeline Service Company's Ship Escort/Response Vessel System (SERVS), utilizing some of the world's most powerful, technologically advanced tugboats. Crowley also provides tanker assist and escort services at Tesoro Alaska Company's Nikiski refinery in Cook Inlet.