Yellowjacket Oilfield Services | 9,289 followers on LinkedIn. Here today. Here tomorrow. | Yellowjacket Oilfield Services offers cost-effective solutions by leveraging state of the art equipment & technology along with superior personnel. YJOS, LLC dba Yellowjacket Oilfield Services is not affiliated with, endorsed by, or sponsored by G&H Diversified Mfg. LP or Yellow Jacket Oil Tools.