The Tesoro Resources Ltd mutual fund (TSORF) is a fund that invests in a variety of resources, such as natural gas, oil, and minerals. It aims to provide investors with exposure to the global resources sector and potential for long-term growth. The fund is managed by Tesoro Resources Ltd, a company that specializes in resource exploration and development. With a diverse portfolio and experienced management team, TSORF offers investors the opportunity to benefit from the potential growth of the resources industry.