This week, 3 Gas Utilities stocks are improving their overall rating on Portfolio Grader. Each of these rates an “A” (“strong buy”) or “B” overall (“buy”).

This week, WGL Holdings, Inc. (WGL) pushes up from a B to a A rating. WGL Holdings, Inc. sells and delivers natural gas, and provides a range of energy-related products and services. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of WGL stock.

UGI Corporation (UGI) earns a A this week, jumping up from last week’s grade of B. UGI Corporation distributes and markets energy products and services. The company also gets A’s in operating margin growth. For more information, get Portfolio Grader’s complete analysis of UGI stock.

New Jersey Resources Corporation’s (NJR) ratings are looking better this week, moving up to a A from last week’s B. New Jersey Resources Corporation provides retail and wholesale energy services to customers in New Jersey and in states from the Gulf Coast to New England, and Canada. The company also gets A’s in operating margin growth. For more information, get Portfolio Grader’s complete analysis of NJR 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.