The United States entered into diplomatic relations with Qatar on March 19, 1972, when diplomat William Stoltzfus met with representatives of the Qatari government and submitted his certifications.  Bilateral relations between the two countries have expanded since the opening of the US Embassy in Doha in March 1973.  The first U.S. ambassador arrived in July 1974. Qatar and the United States are working closely together on regional diplomatic initiatives in the Middle East to strengthen security in the Persian Gulf. The two countries also have important economic ties, particularly in the hydrocarbon sector.  Qatar has also developed international educational institutions in the region to serve the Middle East market. Qatar is also home to a U.S. military facility.  The United States and Qatar have important economic relations. As the largest foreign investor in Qatar and its main source of imports, the United States has developed a strong trading relationship with Qatar, with more than 120 U.S. companies operating in the country.
For example, the United States is a major supplier of equipment to Qatar`s oil and gas industry, and U.S. companies have played an important role in the development of the oil and gas and petrochemical sectors. U.S. exports to Qatar include aircraft, machinery, vehicles, optical and medical instruments, and agricultural products. U.S. imports from Qatar include liquefied natural gas, aluminum, fertilizers and sulphur. The United States and Qatar have signed a framework agreement on trade and investment and participate in annual bilateral strategic dialogues. Qatar has announced a $45 billion investment plan in the United States, in addition to billions of dollars in military and air contract contracts. Sheikh Mohammed said the agreement was not related to the crisis with the four Arab countries, which the United States fears will impact its military and counterterrorism operations and increase Iran`s influence in the region. “The agreement that we both signed on behalf of our governments represents weeks of intensive expert discussions and rekindles the spirit of the Riyadh summit,” Tillerson said at a joint news conference with Sheikh Mohammed.
Tillerson said the agreement signed with his Qatari counterpart, Sheikh Mohammed bin Abdulrahman al-Thani, had been under discussion for weeks.