KERN ENERGY

Kern Energy is the operating brand of Kern Oil & Refining Company, a 26,000-barrel-per-day petroleum refinery on Edison Highway just east of Bakersfield, California [source: https://www.kernenergy.com/]. The single-site facility (EPA Facility ID 110000481611), classified under NAICS 324110 (Petroleum Refineries), supplies California-grade gasoline and diesel to the southern San Joaquin Valley market and is one of the smaller-scale independent refiners operating under California's Low Carbon Fuel Standard regulatory regime [source: https://ww2.arb.ca.gov/kern-oil-refining-co-settlement].

Federal enforcement records flag eight consecutive non-compliance quarters in the most recent two-year window tracked by EPA ECHO [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip]. The site is also listed on the U.S. EPA Superfund database with an open historical site profile, a status that predates current ownership and reflects soil and groundwater contamination from earlier decades of refining operations [source: https://cumulis.epa.gov/supercpad/CurSites/calinfo.cfm?id=0902612]. In 2024 the U.S. Department of Justice and EPA finalized a settlement with Kern Oil & Refining covering Clean Air Act violations, and the same year the company agreed to a $500,000 civil penalty for separate refinery emission violations brought by California regulators [source: https://www.epa.gov/newsreleases/us-epa-us-department-justice-settle-kern-o] [source: https://www.turnto23.com/news/local-news/kern-oil-to-pay-500k-fine-for-viol]. The most recent permit on file is dated April 8, 2026 [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip].

The Kern refinery sits within Kern County, the largest oil-producing county in California, and operates under jurisdiction of the Eastern Kern Air Pollution Control District (EKAPCD) for local air-permit enforcement and the California Air Resources Board (CARB) for state-level fuels and Greenhouse Gas Cap-and-Trade compliance [source: http://www.kernair.org/] [source: https://ww2.arb.ca.gov/eastern-kern-air-pollution-control-district]. The site processes a heavier crude slate than coastal California refineries and produces approximately 28,000 barrels per day combined of gasoline, diesel, and refined intermediate streams [source: https://www.kernenergy.com/].

The September 2024 settlement between U.S. EPA, the Department of Justice, and Kern Oil & Refining Co. resolved a multi-count Clean Air Act enforcement case alleging exceedances of New Source Performance Standards for refinery flare gas, leak-detection-and-repair program shortfalls, and benzene-waste-operations program deficiencies. The settlement required: a civil penalty paid to the U.S. Treasury; injunctive relief in the form of monitoring and process upgrades; and a Supplemental Environmental Project funding additional Bakersfield-area air monitoring [source: https://www.epa.gov/newsreleases/us-epa-us-department-justice-settle-kern-o].

In parallel, California regulators concluded a separate $500,000 settlement with the refinery in 2024 covering CARB-jurisdiction air violations, and the Bakersfield Californian reported on the local impact of that action [source: https://www.bakersfield.com/news/refinery-near-bakersfield-agrees-to-pay-to]. The CalEPA Activity Log tracking environmental compliance updates at the facility is published quarterly and is available through the agency's Cross-Media Enforcement portal [source: https://calepa.ca.gov/wp-content/uploads/2024/09/Kern-Energy-Activity-Log-8]. The plant currently has no active permits in the federal ECHO snapshot, with the most recent permit dated April 8, 2026 [source: https://echo.epa.gov/files/echodownloads/echo_exporter.zip].

The most consequential federal enforcement action in the public record is the 2024 EPA-DOJ Clean Air Act settlement, finalized as a consent decree filed in U.S. District Court [source: https://www.epa.gov/newsreleases/us-epa-us-department-justice-settle-kern-o]. The complaint alleged that Kern Oil & Refining Co. violated multiple Clean Air Act requirements at the Bakersfield refinery, including: New Source Performance Standards for flare combustion devices; the Petroleum Refinery NESHAP rule for benzene waste operations; the leak-detection-and-repair program for fugitive volatile-organic-compound emissions; and recordkeeping and reporting obligations under each rule. Injunctive relief included installation of flare-monitoring instrumentation, third-party leak-detection audits, and a Supplemental Environmental Project funding ambient air-quality monitors in low-income Bakersfield neighborhoods. The civil penalty component was paid to the U.S. Treasury [source: https://www.epa.gov/newsreleases/us-epa-us-department-justice-settle-kern-o].

The state-level $500,000 settlement reported in 2024 by KERO-TV and the Bakersfield Californian addressed separate California-jurisdiction violations at the same facility [source: https://www.turnto23.com/news/local-news/kern-oil-to-pay-500k-fine-for-viol] [source: https://www.bakersfield.com/news/refinery-near-bakersfield-agrees-to-pay-to]. CARB's settlement page documents prior settlements covering Low Carbon Fuel Standard reporting and offset-credit accounting matters [source: https://ww2.arb.ca.gov/kern-oil-refining-co-settlement].

The legacy Superfund profile, which predates the current ownership era, lists soil and groundwater contamination from historical refining and tank-storage operations at the Edison Highway site. The site is in long-term monitoring rather than active remediation, and the EPA Superfund site-profile dashboard publishes the most recent technical-assessment summary [source: https://cumulis.epa.gov/supercpad/CurSites/calinfo.cfm?id=0902612].

A permit-modification request to extract and reincorporate hydrogen, reported by the Bakersfield Californian, advanced through the local CEQA process [source: https://www.bakersfield.com/news/refinery-wins-permit-to-extract-reincorpor]. Eastern Kern APCD's permit-record portal hosts the corresponding final-decision notice on the California Energy Commission e-filing system [source: https://efiling.energy.ca.gov/GetDocument.aspx?tn=256372&DocumentContentId=].

The Kern Energy refinery (EPA Facility ID 110000481611) is a single-site refining operation on Edison Highway approximately ten miles east of downtown Bakersfield in Kern County, California [source: https://www.kernenergy.com/]. Process units include atmospheric and vacuum distillation, hydrotreating, fluid catalytic cracking, alkylation, isomerization, hydrogen recovery, and crude and product storage tankage. The facility's nameplate capacity is approximately 26,000 barrels per day of crude charge with operational throughput in the high 20,000-barrels-per-day range depending on feedstock and product mix [source: https://www.kernenergy.com/]. The refinery is permitted by the Eastern Kern Air Pollution Control District for stationary-source air emissions, by the California Department of Toxic Substances Control for on-site hazardous-waste generation and storage, and by the Central Valley Regional Water Quality Control Board for discharge and groundwater monitoring [source: http://www.kernair.org/].

The site sits within the southern San Joaquin Valley non-attainment area for ozone and fine particulate matter under National Ambient Air Quality Standards, which adds federal Clean Air Act regulatory layers on top of the state and local permit regimes typical for California refineries [source: https://ww2.arb.ca.gov/eastern-kern-air-pollution-control-district]. The Edison Highway site has been in continuous refining operation since the mid-twentieth century; the legacy Superfund profile reflects historical tank-leak and soil-contamination events from earlier decades that are now under long-term monitoring [source: https://cumulis.epa.gov/supercpad/CurSites/calinfo.cfm?id=0902612].

Pollutants of greatest concern at a refinery of this profile and scale are characteristic of light-to-medium crude refining: volatile organic compounds (notably benzene, toluene, ethylbenzene, and xylenes); sulfur dioxide and hydrogen sulfide from sulfur-recovery operations; nitrogen oxides from process heaters and the fluid catalytic cracker regenerator; particulate matter from cracker catalyst circulation and combustion units; and fugitive methane and VOCs from leaks across valves, flanges, pumps, and connectors [source: https://www.epa.gov/newsreleases/us-epa-us-department-justice-settle-kern-o].

The 2024 EPA-DOJ consent decree's leak-detection-and-repair injunctive provisions specifically target this fugitive-emissions category, which research published in journals serving the petroleum-refining and atmospheric-science communities consistently identifies as the largest under-counted source of refinery hydrocarbon emissions in California's San Joaquin Valley [source: https://ww2.arb.ca.gov/kern-oil-refining-co-settlement]. The Eastern Kern Air Pollution Control District jurisdiction also reaches Portland-cement-kiln NOx emissions and other industrial sources, as reflected in the April 2026 Federal Register approval of an Eastern Kern SIP revision; this regulatory backdrop sets emissions-management context that any operator of the Kern refinery must navigate [source: https://www.federalregister.gov/documents/2026/04/16/2026-07398/air-plan-approval-california-eastern-kern-air-pollution-control-district-portland-cement-kilns].

Within California, Kern Energy is one of approximately a dozen petroleum refineries operating under combined federal Clean Air Act and California-specific Low Carbon Fuel Standard plus Cap-and-Trade obligations. Direct peers in scale and crude-slate include Greka Energy's small Santa Maria-area refinery and the Lunday-Thagard refinery in South Gate; integrated-major peers in the same regulatory regime include Marathon's Los Angeles refinery, Phillips 66 Wilmington, Chevron Richmond and El Segundo, and Valero Benicia [source: https://ww2.arb.ca.gov/eastern-kern-air-pollution-control-district]. Among the small-independent California cohort, the 2024 federal-state combined enforcement footprint at Kern is on the higher end of penalty-and-injunctive scope.

Material forward-looking risks for Kern Energy at the Edison Highway refinery cluster on three vectors: continued EPA-DOJ consent-decree compliance through the multi-year injunctive period; potential additional state CARB enforcement under Low Carbon Fuel Standard and Cap-and-Trade given California's tightening 2030 emissions trajectory; and long-term Superfund-monitoring obligations linked to historical contamination at the site [source: https://www.epa.gov/newsreleases/us-epa-us-department-justice-settle-kern-o] [source: https://cumulis.epa.gov/supercpad/CurSites/calinfo.cfm?id=0902612]. California's broader regulatory shift toward 2045 carbon neutrality also creates an open-ended question about long-term refinery viability across all small-independent California operators in the next decade [source: https://ww2.arb.ca.gov/kern-oil-refining-co-settlement].

The consent-decree injunctive period requires sustained third-party leak-detection-and-repair audits and continuous flare-monitoring data submission to EPA Region 9, which means the cost-of-compliance baseline for the facility has stepped up materially relative to pre-2024 operations [source: https://www.epa.gov/newsreleases/us-epa-us-department-justice-settle-kern-o]. The CalEPA Activity Log is the most reliable place to monitor whether the Bakersfield facility meets the consent-decree milestones over the multi-year horizon [source: https://calepa.ca.gov/wp-content/uploads/2024/09/Kern-Energy-Activity-Log-8]. Local Bakersfield press coverage of any Eastern Kern APCD permit action provides the leading indicator on whether state regulators view the facility as moving toward or away from full compliance under California's stricter 2030 framework [source: https://www.bakersfield.com/news/refinery-wins-permit-to-extract-reincorpor].