Complex sentence: Stanwell Corporation is a diversified energy company with a range or electricity generation assets, comprised of thermal coal, gas and hydroelectric, and fuel assets which are geographically dispersed across Queensland which together generate more than 4,000 megawatts of electricity.
Split into simpler sentences: Stanwell Corporation is a diversified energy company with a range or electricity generation assets: thermal coal, gas and hydroelectric, and fuel assets. These are geographically dispersed across Queensland which together generate more than 4,000 megawatts of electricity.