Oleum, California

Tormey, formerly known as El Cierbo from the (Spanish word 'Ciervo' for 'Elk' (Cervus canadensis), is an unincorporated community in Contra Costa County, California, United States. It is located between Rodeo and Crockett on the edge of the ConocoPhillips oil refinery in Rodeo. It is 6.5 miles (10 km) west-northwest of Martinez, at an elevation of 20 feet (6 m). The community is home to less than a dozen homes and the former offices of the John Swett Unified School District.

Canada del Cierbo is a valley and 2.5-mile-long (4.0 km) northwestward-flowing stream originating in the Crockett Hills Regional Park and flowing to eastern San Pablo Bay near the Carquinez Strait at Tormey, Contra Costa County, California.

The San Francisco Refinery is an oil refinery complex located in Rodeo, California and in Arroyo Grande, California, in the San Francisco Bay Area and Santa Maria Valley. These two locations, although more than 200 miles apart, are considered one location. They are directly connected by a 200-mile pipeline. The refinery is currently owned and operated by Phillips 66, a downstream company with midstream and chemical businesses spun off from ConocoPhillips in 2012. The complex is capable of refining 120,000 barrels (19,000 m3) of crude oil per day.

Selby is an unincorporated community in Contra Costa County, in the East Bay region of the San Francisco Bay Area in northern California.

Rodeo Creek is an 8.3-mile-long (13.4 km) intermittent stream in western Contra Costa County, California running through the town of Rodeo to San Pablo Bay.

Rodeo (; Spanish for "Cattle roundup") is a census-designated place (CDP) located in Contra Costa County, California, in the East Bay sub-region of the San Francisco Bay Area, on the eastern shore of San Pablo Bay, 25 miles northeast of San Francisco. The population was 9,653 at the 2020 census. The town is named for the rodeos common in the late 19th century. Cattle from the surrounding hills were regularly driven down through the old town to a loading dock on the shoreline of San Pablo Bay for shipment to slaughterhouses, a practice which continued through the early 20th century. The town of Rodeo is served by the Interstate 80 freeway and State Route 4. The Southern Pacific Railroad main line passes through Rodeo. Rodeo has not been a stop on the railroad since the 1950s.

Valona is an unincorporated community in Contra Costa County, California, United States. It is located in the bluffs above Crockett, 5.5 miles (9 km) west-northwest of Martinez, at an elevation of 62 feet (19 m). The similar village of Selby is located nearby. The ZIP Code is 94525. The community is inside area codes 510 and 341.

The Napa River is a river approximately 55 miles (89 km) long in the U.S. state of California. It drains a famous wine-growing region called the Napa Valley, in the mountains north of the San Francisco Bay. Milliken Creek and Mt. Veeder watersheds are a few of its many tributaries. The river mouth is at Vallejo, where the intertidal zone of fresh and salt waters flow into the Carquinez Strait and the San Pablo Bay.

Rancho El Pinole was a 17,761-acre (71.88 km2) Mexican land grant along Carquinez Strait in present-day Contra Costa County, California. It was given in 1842 by Governor Juan Alvarado to Ygnacio Martinez. Rancho El Pinole extended over land that today includes most of the Franklin Ridge, Crockett, Hercules, Martinez, Oleum, Pinole, Rodeo, Selby and Tormey.

The Carquinez Bridge is a pair of parallel bridges spanning the Carquinez Strait at the northeastern end of San Francisco Bay. They form the part of Interstate 80 between Crockett and Vallejo, California, United States. The name Carquinez Bridge originally referred to a single cantilever bridge built in 1927, which was part of the direct route between San Francisco and Sacramento. A second parallel cantilever bridge was completed in 1958 to deal with the increased traffic. Later, seismic problems made the 1927 span unsafe in case of an earthquake, and led to the construction, and 2003 opening, of a replacement: a suspension bridge officially named the Alfred Zampa Memorial Bridge, in memory of iron worker Al Zampa, who played an integral role in the construction of numerous San Francisco Bay Area bridges. The Alfred Zampa Memorial Bridge carries southbound traffic from Vallejo to Crockett, and the 1958 cantilever span carries northbound traffic.

John Swett High School is located in Crockett, California, United States. It serves the communities of Crockett, Port Costa, Rodeo, and the Foxboro area of Hercules. It is named after John Swett, former California Superintendent of Public Instruction, elected in 1863. John Swett High School was established in 1927. The school remains in its original building complex, which was extensively renovated five years after original construction for seismic retrofitting at a cost of two-thirds of the original cost of the complex. John Swett High School is part of the John Swett Unified School District. The school's Indian mascot was dropped by a vote of the School District Board in February 2015. Citing the Golden State Warriors as an example, the school mascot became the Warriors in February 2016. The school always was the Warriors but would go by Indians. The year books would say Warriors on the cover but sports teams would go by the Indians.

Mare Island Lighthouse was a lighthouse in California, United States, on the north shore of San Pablo Bay at the entrance to Carquinez Strait, California.