San-Ai Obbli Co., Ltd. wholesales and retails petroleum products and liquefied petroleum (LP) gas. It operates through five segments: Aircraft-Related Business, Chemical-Related Business, Gas-Related Business, Aviation-Related Business, and Other Business. The company also provides storage and related services for petroleum products, gas utility and pipeline services, aviation fuel storage and aircraft refueling, design and construction of airport fuel facilities, and energy-saving devices. It sells chemical products such as solvents, industrial chemicals, biocides, and fire extinguishing agents. Formerly San-Ai Oil Co., Ltd., it changed its name in April 2022, was incorporated in 1947, and is headquartered in Chiyoda, Japan.