Los Angeles City oil field

Los Angeles City oil field
Name	Los Angeles City oil field
Location	Los Angeles, California, United States
Coordinates	34.0522°N 118.2437°W
Field type	Urban oil field
Discovery	1890s
Operators	See article

Los Angeles City oil field is an urban oil-bearing accumulation in central Los Angeles, California, within the Los Angeles Basin of the United States. The field influenced early Southern Pacific Railroad era development, attracted investment from firms such as Union Oil Company of California and Shell Oil Company, and intersected with civic planning by the City of Los Angeles and infrastructure projects like the Pacific Electric Railway and Interstate 5. Its presence affected neighborhoods including Downtown Los Angeles, Hollywood, Echo Park, and Boyle Heights while intersecting land use debates involving the Los Angeles County Metropolitan Transportation Authority and private entities like Chevron Corporation.

History

Oil was first discovered in the region during the late 19th century amid exploration by entrepreneurs associated with Henry Huntington's transit expansion and financiers from J.P. Morgan-linked syndicates. Early drilling booms coincided with the growth of Los Angeles after the Southern Pacific Railroad routes and the arrival of investors tied to William Mulholland water projects and the Los Angeles Aqueduct era. Production surged during periods that intersected with national events such as World War I and World War II, when companies including Union Oil Company of California, Standard Oil of California, and independent operators responded to demand from the United States Navy and War Production Board. The field later experienced regulatory and legal actions involving entities like the California Division of Oil, Gas, and Geothermal Resources and litigation referencing municipal authority under the California Environmental Quality Act and local ordinances of the Los Angeles City Council.

Geology and Petroleum Characteristics

The accumulation lies within the tectonically influenced Los Angeles Basin bounded by the Santa Monica Mountains and the San Gabriel Mountains, with structural traps associated with the Whittier Fault system and folded strata similar to other reservoirs exploited in the basin such as the Long Beach Oil Field and Inglewood Oil Field. Reservoir rocks include Pliocene and Miocene sandstones correlated to units described in studies by the United States Geological Survey and the California Geological Survey, with hydrocarbon migration driven by regional compressional regimes tied to the Pacific Plate and the North American Plate boundary. Oil in the field exhibits API gravity and sulfur characteristics comparable to other urban fields; analyses by academic groups at the University of California, Los Angeles and the California Institute of Technology informed models of porosity, permeability, and fluid contacts used by operators like Occidental Petroleum and smaller independents.

Development and Production

Development progressed from cable-tool rigs and derricks in the 1890s to rotary drilling, enhanced recovery methods, and directional drilling introduced by companies such as Shell Oil Company and Texaco in the 20th century. Production infrastructure included well pads, pumping units, pipelines connecting to terminals serving firms like Union Oil Company of California and later refiners in the El Segundo Refinery and Harbor City. Techniques such as waterflooding, steam injection, and tertiary recovery were applied consistent with practices documented by the American Petroleum Institute and taught in programs at California Institute of Technology and University of Southern California engineering departments. Output fluctuated over decades in response to commodity price cycles on markets monitored by the New York Mercantile Exchange and policy changes influenced by decisions in the California State Legislature and executive orders tied to energy emergencies.

Environmental and Health Impacts

Urban extraction raised concerns about emissions regulated under agencies like the California Air Resources Board and the Environmental Protection Agency, with specific scrutiny from local advocates associated with organizations such as the Natural Resources Defense Council and community groups in Echo Park and Lincoln Heights. Contaminants of concern included volatile organic compounds, methane, and petroleum hydrocarbons that affected soil and groundwater monitored by the Los Angeles County Department of Public Health and researchers at UCLA Fielding School of Public Health. Incidents such as leaks and surface seeps engaged media outlets including the Los Angeles Times and prompted litigation referencing statutes administered by the California Regional Water Quality Control Board and enforcement actions under the Safe Drinking Water Act.

Regulation and Land Use

Land use and permitting involved coordination between municipal bodies such as the Los Angeles City Council, the Los Angeles Department of Building and Safety, and state regulators including the California Geologic Energy Management Division. Zoning decisions intersected with planning documents from the Los Angeles Department of City Planning and public comment processes influenced by civic actors like the Los Angeles Neighborhood Council system. Conflicts between energy activity and urban development were mediated through mechanisms including environmental impact reviews under the California Environmental Quality Act and negotiations with private stakeholders such as Chevron Corporation and community coalitions represented by groups like the Natural Resources Defense Council and local legal clinics at UCLA School of Law.

Remediation and Decommissioning

Decommissioning of wells and remediation of contaminated sites followed protocols overseen by the California Geologic Energy Management Division and remediation standards set by the California Regional Water Quality Control Board. Work involved plugging wells to standards promulgated by the United States Environmental Protection Agency and conducting site remediation guided by engineering firms and consultants affiliated with associations like the American Society of Civil Engineers and the American Petroleum Institute. Redevelopment projects on former lease sites engaged municipal redevelopment agencies including the Los Angeles Housing Department and private developers who coordinated with preservation advocates such as Los Angeles Conservancy while meeting post-closure monitoring requirements specified by state statutes and local ordinances.

Category:Oil fields in California Category:Geography of Los Angeles