The overall ratings of three Gas Utilities stocks are down on Portfolio Grader this week. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

Laclede Group (NYSE:LG) is on the decline this week, earning a D (“sell”) after receiving a C (“hold”) last week. Laclede Group is involved in the retail distribution of natural gas. For Portfolio Grader’s specific subcategory of Sales Growth, LG also gets an F. For a full analysis of LG stock, visit Portfolio Grader.

AGL Resources (NYSE:GAS) gets weaker ratings this week as last week’s C drops to a D. Nicor is a holding company that primarily engages in gas distribution. The stock also gets an F in Earnings Surprise. To get an in-depth look at GAS, get Portfolio Grader’s complete analysis of GAS stock.

Slipping from C to a D rating, ONEOK Inc. (NYSE:OKE) takes a hit this week. ONEOK is involved in the natural gas and natural gas liquids business across the United States. The stock gets F’s in Cash Flow and Sales Growth. The stock price has fallen 5% over the past month, worse than the 4.3% increase the S&P 500 has seen over the same period of time. The stock currently has a trailing PE Ratio of 25.40. For more information, get Portfolio Grader’s complete analysis of OKE stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.