Complex sentence: The Rockefeller family also wanted Exxon Mobil to invest more in alternative energy; however, the resolution did not obtain the necessary majority and Tillerson held on to both the chairman and chief executive officer job titles.
Split into simpler sentences: The Rockefeller family also wanted Exxon Mobil to invest more in alternative energy. However, the resolution did not obtain the necessary majority and Tillerson held on to both the chairman and chief executive officer job titles.