Signal Hill, Long Beach, Californië met boortorens (c. 1932 - c. 1950) by Huddleston Photo and Western Publishing and… https://www.rawpixel.com/image/13735856/image-paper-art-skyFree Image from public domain licenseOlieveld in Signal Hill, Long Beach, Californië met boortorens (c. 1945 - c. 1960) by anonymous, H S Crocker Company and… https://www.rawpixel.com/image/13735717/image-paper-cloud-plantFree Image from public domain licenseOlieveld nabij Kilgore en Longview, Texas met boortorens (c. 1971 - c. 1974) by anonymous and Baxter Lane Company https://www.rawpixel.com/image/13736158/image-paper-cloud-skyFree Image from public domain licenseOlieveld met boortorens, Californië (c. 1940 - c. 1944) by anonymous and Gardner Thompson Co https://www.rawpixel.com/image/13735920/image-paper-art-skyFree Image from public domain licenseOlieveld in Signal Hill, Californië met boortorens (c. 1914 - c. 1934) by anonymous and M Kashower Company https://www.rawpixel.com/image/13735714/image-paper-art-skyFree Image from public domain licenseOlieveld met boortorens in Wyoming (c. 1940 - c. 1944) by anonymous and Sanborn Souvenir Company https://www.rawpixel.com/image/13735850/image-paper-art-skyFree Image from public domain licenseSpuitende boortoren op olieveld in Bakoe (c. 1890 - c. 1900) by anonymous https://www.rawpixel.com/image/13759875/spuitende-boortoren-olieveld-bakoe-c-1890-1900-anonymousFree Image from public domain license