Some of the privatised industries, including gas, water, and electricity, were natural monopolies for which privatisation involved little increase in competition. The privatised industries that demonstrated improvement sometimes did so while still under state ownership. British Steel Corporation had made great gains in profitability while still a nationalised industry under the government-appointed MacGregor chairmanship, which faced down trade-union opposition to close plants and halve the workforce. Regulation was also significantly expanded to compensate for the loss of direct government control, with the foundation of regulatory bodies such as Oftel (1984), Ofgas (1986), and the National Rivers Authority (1989). There was no clear pattern to the degree of competition, regulation, and performance among the privatised industries.