Industry refinery factory working. AI generated Image by rawpixel. https://www.rawpixel.com/image/12059012/photo-image-face-person-technologyView licenseMale engineer industry outdoors hardhat. https://www.rawpixel.com/image/13148405/male-engineer-industry-outdoors-hardhat-generated-image-rawpixelView licenseU.S. Marines Corps Pfc. Quinton Jones, assigned to the 9th Engineer Support Battalion, refuels a SIXCON fuel tank from Naval… https://www.rawpixel.com/image/8739293/photo-image-public-domain-person-gunFree Image from public domain license