Complex sentence: In the mid 1980s the oil market was in a terrible slump, with prices lowering daily, the firm was in serious financial trouble until, that year, another company, distressed oil properties specialist Harken Energy, purchased Spectrum 7.
Split into simpler sentences: In the mid 1980s the oil market was in a terrible slump, with prices going lower daily. The firm was in serious financial trouble until, that year, another company, a distressed oil properties specialist Harken Energy, purchased Spectrum 7.