A Williams Companies Inc. natural gas drilling rig operates in Rifle, Colorado.
George Frey | Bloomberg | Getty Images
Williams Companies shares rose 1.5 percent on Wednesday after Goldman Sachs put a "buy" rating on the stock.
The firm based the rating on "strong fundamental positioning in natural gas infrastructure and its visible growth from well-contracted project."
Williams Companies shares have been choppy due to quarterly results and a failed merger deal. Last month, Energy Transfer Equity terminated an agreement with the company.
Williams shares have slipped about 13.5 percent this year.
Williams Companies' year-to-date performance: