Southwest Gas (NYSE:SWX – Get Free Report) and Naturgy Energy Group (OTCMKTS:GASNY – Get Free Report) are both utilities companies, but which is the superior stock? Get Southwest Gas alerts:Net Margins Return on Equity Return on Assets Southwest Gas 31.85% 6.91% 2.64% Naturgy Energy Group N/A N/A N/AInsider and Institutional Ownership92.8% of Southwest Gas shares are held by institutional investors. Analyst RatingsSell Ratings Hold Ratings Buy Ratings Strong Buy Ratings Rating Score Southwest Gas 0 1 6 1 3.00 Naturgy Energy Group 0 0 3 1 3.25This is a summary of current recommendations for Southwest Gas and Naturgy Energy Group, as reported by MarketBeat. Given Southwest Gas’ higher possible upside, analysts plainly believe Southwest Gas is more favorable than Naturgy Energy Group. Gross Revenue Price/Sales Ratio Net Income Earnings Per Share Price/Earnings Ratio Southwest Gas $1.74 billion 3.84 $439.83 million $7.66 12.05 Naturgy Energy Group N/A N/A N/A $0.31 21.18Southwest Gas has higher revenue and earnings than Naturgy Energy Group.