Smith International was a Fortune 500 company headquartered in the Greenspoint district and in unincorporated Harris County, Texas. Smith International ceased to exist as an independent company following the merger with Schlumberger. This company supplies products to gas and oil production and exploration companies. The company used to be easily identified by its red Sii logo. The company had recently changed its logo to consist of the word "SMITH" in black capital letters with a green globe.