Kirby VenSyn Petroleum Company is formed.
Kirby Petroleum Company operated as a Houston based independent oil and gas exploration and development company until 1956 when, after the sale of its producing properties, the remaining non-producing acreage was merged with three other independent oil and gas companies to form Kirby VenSyn Petroleum Company, a publicly traded company. As a result of the mergers, the Murchison family of Dallas, later noted for its ownership of the Dallas Cowboys, owned approximately 35% of Kirby. Murchison family members remain shareholders of Kirby today.