https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/12171077Edit ImageSaveSaveEditCropCustom TextOil field worker working on the mud hog, a machine which pumps the mud from the sluch pit through the drill pipe to the bit, Kilgore, Texas by Russell LeeView public domain image source hereMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1200 x 958 px | 300 dpiLarge JPEG 3500 x 2794 px | 300 dpiBest Quality JPEG 4096 x 3270 px | 300 dpiTIFF 4096 x 3270 px | 300 dpi | 12.78 MBFree DownloadOil field worker working on the mud hog, a machine which pumps the mud from the sluch pit through the drill pipe to the bit, Kilgore, Texas by Russell LeeMore