This week, the ratings of 17 Oil Gas & Consumable Fuels stocks on Portfolio Grader are down. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

EQT Corporation (EQT) experiences a ratings drop this week, going from last week’s C to a D. EQT Corporation offers energy products, primarily natural gas and NGLs, and services to wholesale and retail customers in the United States. The company also gets F’s in sales growth, operating margin growth, earnings growth, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of EQT stock.

Royal Dutch Shell Plc Sponsored ADR Class B (RDS.B) gets weaker ratings this week as last week’s C drops to a D. Royal Dutch Shell Plc Sponsored ADR Class B explores for, produces, and refines petroleum. The company also gets F’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of RDS.B stock.

Tesoro Logistics LP’s (TLLP) rating weakens this week, dropping to a D versus last week’s C. Tesoro Logistics LP acquires, owns, operates and develops crude oil and refined products logistics assets. The company also gets F’s in earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of TLLP stock.

This week, Cabot Oil & Gas Corporation (COG) drops from a C to a D rating. Cabot Oil & Gas Corporation is an independent company that develops, explores, produces and markets natural gas, and transports, stores, and gathers it for resale. The company also gets F’s in sales growth. For more information, get Portfolio Grader’s complete analysis of COG stock.

This week, PBF Energy, Inc. Class A’s (PBF) rating worsens to a F from the company’s D rating a week ago. PBF Energy, Inc. Class A operates as an independent petroleum refiner and supplier of unbranded transportation fuels, heating oil, petrochemical feedstocks, lubricants and other petroleum products in the United States. The company also gets F’s in operating margin growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of PBF stock.

Crestwood Equity Partners LP (CEQP) slips from a C to a D this week. Crestwood Equity Partners LP operates in natural gas storage in Texas, and in natural gas, liquid and crude oil services serving customers in the United States and Canada. The company also gets F’s in sales growth, operating margin growth, earnings growth, earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of CEQP stock.

Penntex Midstream Partners LP (PTXP) declines this week from a C to a D. The company also gets F’s in earnings revisions and free cash flow. For more information, get Portfolio Grader’s complete analysis of PTXP stock.

Memorial Resource Development Corp (MRD) is having a tough week. The company’s rating falls from a C to a D. The company also gets F’s in operating margin growth, earnings surprise, earnings momentum, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of MRD stock.

Slipping from a D to a F rating, Par Pacific Holdings Inc (PARR) takes a hit this week. The company also gets F’s in sales growth, earnings growth, earnings revisions, earnings surprise, earnings momentum, and return on equity. For more information, get Portfolio Grader’s complete analysis of PARR stock.

This is a rough week for Enable Midstream Partners LP (ENBL). The company’s rating falls to D from the previous week’s C. The company also gets F’s in sales growth, operating margin growth, earnings surprise, and free cash flow. For more information, get Portfolio Grader’s complete analysis of ENBL stock.

Dorian LPG Ltd. (LPG) earns a F this week, moving down from last week’s grade of D. The company also gets F’s in earnings growth, earnings revisions, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of LPG stock.

This week, Hallador Energy Company’s (HNRG) rating worsens to a D from the company’s C rating a week ago. Hallador Energy Company processes, mines and sells coal to producers of electric power. The company also gets F’s in sales growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of HNRG stock.

GeoPark Ltd (GPRK) declines this week from a C to a D. The company also gets F’s in sales growth, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of GPRK stock.

This week, VOC Energy Trust (VOC) drops from a C to a D rating. VOC Energy Trust acquires and holds a term net profits interest of the net proceeds from production of the interests in oil and natural gas properties in the states of Kansas and Texas. The company also gets F’s in sales growth. For more information, get Portfolio Grader’s complete analysis of VOC stock.

EV Energy Partners, L.P.’s (EVEP) rating weakens this week, dropping to a F versus last week’s D. EV Energy Partners, L.P. explores for oil and natural gas. The company also gets F’s in sales growth, earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of EVEP stock.

PetroQuest Energy, Inc. (PQ) is having a tough week. The company’s rating falls from a C to a D. PetroQuest Energy, Inc. explores, develops, acquires, and operates oil and gas properties onshore and offshore in the Gulf Coast Region. The company also gets F’s in sales growth, earnings surprise, and free cash flow. For more information, get Portfolio Grader’s complete analysis of PQ stock.

Vertex Energy, Inc. (VTNR) slips from a C to a D this week. Vertex Energy, Inc. is a middle market consolidator, refiner and re-refiner of distressed petroleum streams, such as used oil, transmix, fuel oils and off-specification commercial chemical products. The company also gets F’s in sales growth and return on equity. For more information, get Portfolio Grader’s complete analysis of VTNR 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.