Complex sentence: The Indiana Supreme Court threw out the state regulations in a series of cases, and the waste continued, and by 1902 the yield from the fields began to decline, leading to a switch to alternative forms of energy.
Split into simpler sentences: The Indiana Supreme Court threw out the state regulations in a series of cases, and the waste continued. By 1902 the yield from the fields began to decline, leading to a switch to alternative forms of energy.