The Houston Natural Gas (HNG) corporation was initially formed from the Houston Oil Co. in 1925 to provide gas to customers in the Houston market through the building of gas pipelines. Under the leadership of CEO Robert Herring from 1967 to 1981, the company took advantage of the unregulated Texas natural gas market and the commodity surge in the early 1970s and became a dominant force in the energy industry with a large pipeline network. Toward the end of the 1970s, HNG's luck began to run out with rising gas prices forcing clients to switch to oil. In addition, with the passing of the Natural Gas Policy Act of 1978, the Texas market was more difficult to profit from and as a result, HNG's profits fell. After Herring's death in 1981, M.D. Matthews briefly took over as CEO in a 3-year stint with initial success, but ultimately, a big dip in earnings led to his exit. In 1984, Kenneth Lay succeeded Matthews and inherited the troubled, but large diversified energy conglomerate.