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What's New

Annual SSRRC Safety Audit

The 2009 annual safety audit was completed on November 4, 2009.


An asphalt refinery that receives crude oil from various onshore fields for asphalt production.


The Santa Maria Asphalt Refinery is located approximately 4 miles west of the City of Santa Maria.

Greka Location

Overhead View of Greka's Santa Maria Asphalt Refinery

Onshore Facilities

Santa Maria Asphalt Refinery

  • Plot Plan

  • Site Description is located on a 30-acre portion of Greka-owned land

  • The facility receivess:
    • Crude oil (5,000 barrels per day) from various nearby onshore oil fields and from the San Ardo Field in Monterey County
    • Heavy gas oils
    • Muriatic acid
    • Caustic soda
    • Sulfuric acid
  • Separates crude oil into heavy fractions and distillates at a rate of about 125 barrels per hour using heat and vacuum fractionation
  • Ships products (asphalt, asphalt emulsion, gas oil, and naphtha) by truck, rail could also be used for receiving and sending materials and products

Product Distribution

Crude Oil Fractions, Naptha, Other Distillates, and Asphalt

  • Distributed via truck and rail.
    • Asphalt to customer batch plants;
    • Distillates to oil fields as diluent;
    • Asphalt emulsion to various customers

Past Activities

  • The Santa Maria Asphalt Refinery has been producing asphalt since it was constructed in 1935, prior to the implementation of Santa Barbara County's Zoning Ordinance.
  • When zoning was adopted in 1958, the facility was "grandfathered" in and allowed to continue operating as an existing non-conforming use.
  • The refinery operated continuously under a series of owners, including Douglas, Conoco, and SABA through 1993, at which time, Conoco closed it.
  • In 1994, Saba Petroleum Company (Saba) purchased the facility.
  • After various upgrades to the refinery, Saba reopened it in 1996.
  • The facility is now owned and operated by Greka Energy.
  • On October 19, 2000, the SSRRC conducted a facility walk-through safety audit of the 30-acre refinery. Committee members then met with Greka staff on 11/14/00 to review the facility's safety documentation. The SSRRC then compiled a table of all the deficiencies found and prioritized corrective action. Deficiencies included improper storage of hazardous materials, inadequate secondary containment, incomplete documentation, overdue equipment maintenance, testing, and inspections, and staffing deficiencies.
  • The SSRRC continues to work with Greka through the annual safety audit process to implement improvements identified during the 2000 safety audit. The SSRRC completed annual safety audits on May 2, 2003; May 22, 2003, and May 27, 2004.
  • Greka received a land use permit for the installation of a 135 kW diesel-fired CARB-certified emergency generator on October 8, 2004. The generator will provide electricity to basic plant functions in the event of a power outage.
  • Greka initiated a facility turnaround in June 2005. The turnaround involved a partial shutdown of the facility to allow for maintenance, repair, testing and inspection of facility equipment.
  • In November, 2005, Greka applied for and received a land use permit for a wastewater treatment system to process the facility wastewater. The system consists of an oil/water separator, filtration, adsorption to carbonized zeolite beds, ultra-violet light and reverese osmosis. The project was reviewed and found consistent with the California Regional Water Quality Control Board General Waiver. The water will be blended with irrigation supply and used on approximately 344 acres of bermed, irrigated crop lands.


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