7 Oil Gas & Consumable Fuels stocks are moving up in their overall rating this week, according to the Portfolio Grader database. Every one of these is graded an “A” (“strong buy”) or “B” overall (“buy”).

Phillips 66’s (PSX) ratings are looking better this week, moving up to a A from last week’s B. Phillips 66 operates as an independent downstream energy company. The company also gets A’s in operating margin growth, earnings growth, earnings revisions, earnings surprise, and return on equity. For more information, get Portfolio Grader’s complete analysis of PSX stock.

Western Refining, Inc. (WNR) boosts its rating from a C to a B this week. Western Refining, Inc. is an independent crude oil refiner and marketer of refined products and also operates service stations and convenience stores. The company also gets A’s in operating margin growth, earnings revisions, and return on equity. For more information, get Portfolio Grader’s complete analysis of WNR stock.

This is a strong week for Alon USA Partners LP (ALDW). The company’s rating climbs to A from the previous week’s B. The company also gets A’s in operating margin growth and return on equity. For more information, get Portfolio Grader’s complete analysis of ALDW stock.

Par Pacific Holdings Inc (PARR) shows solid improvement this week. The company’s rating rises from a B to a A. The company also gets A’s in earnings surprise and return on equity. For more information, get Portfolio Grader’s complete analysis of PARR stock.

This week, Ship Finance International Limited (SFL) pushes up from a C to a B rating. Ship Finance International Limited is engaged mainly in the ownership and operation of vessels and offshore-related assets. The company also gets A’s in sales growth, operating margin growth, earnings growth, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of SFL stock.

Niska Gas Storage Partners LLC (NKA) gets a higher grade this week, advancing from a C last week to a B. Niska Gas Storage Partners LLC is an independent owner and operator of natural gas storage assets in North America. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of NKA stock.

This week, Frontline Ltd.’s (FRO) ratings are up from a B last week to a A. Frontline Ltd. owns a fleet of very large crude carriers and Suezmax tankers that transport crude oil and oil products between ports. The company also gets A’s in earnings revisions and earnings momentum. For more information, get Portfolio Grader’s complete analysis of FRO 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.