For the second straight week, gas prices have dropped. The national average price for a gallon of gasoline has fallen 4.7 cents per gallon over the last week to $2.83 per gallon, according to GasBuddy data compiled from more than 10 million individual price reports. The national average price of diesel saw slight relief as well, shedding 0.9 cents to an average of $3.28 per gallon.

“Much of the country continues to enjoy broad decreases in gas prices as oil prices drop to $69 per barrel. In fact, with the exception of the West Coast where an earlier natural gas pipeline shut down caused prices to go up, nearly every state saw prices move lower,” said Patrick DeHaan, head of petroleum analysis at GasBuddy.

“The Great Lakes has seen prices drop 30-50 cents per gallon at individual stations since the start of October, leading decliners. The fall relief that has been expected for weeks has finally arrived. Gasoline economics typically weaken shortly after summer, but we experienced somewhat of a delay due to concern over Iran sanctions and OPEC production, but seemingly the market has become more concerned with other factors, and thus far, the effect on motorists has been lower gas prices. While Great Lakes states may see prices bounce of current lows in the week ahead, much of the rest of the country will likely see additional downward movement,” DeHaan added.

Retail gasoline prices continue to show weakness after oil prices continued to soften last week, leaving West Texas Intermediate crude oil at $69.12 per barrel while Brent crude oil failed to break above $80 and opens the week at $79.78 per barrel. Some varieties of Canadian crude oil, such as Western Canadian Select (WCS) were lucky to fetch close to half of that with prices starting the week at $25 per barrel. Concern over China’s pace of growth lent pressure to falling oil prices as petroleum markets appear to be stuck in neutral with little movement this morning.

Overshadowing news that OPEC and its allies are struggling to raise oil output in advance of what could be a 2.5 million barrel shortfall as Iranian oil becomes subject to U.S. trade sanctions on November 4, the admission by Saudi Arabia that it played a role in the murder of Washington Post journalist, Jamal Khashoggi is getting top billing. Other factors such as news that less than a quarter of American shale producers are turning in a profit, despite elevated crude prices and record rig placements going back to March 2015, suggests that trouble could lie ahead if oil prices, either through declines in demand or an economic slowdown move fall and remain lower into 2019.

While motorists can expect another break at the pump in the week ahead, it won’t be all rosy: gas prices in some Great Lakes states have plummeted so fast some stations now find themselves selling under their cost of replacement, which will likely lead to an upward bump at the pump in those states in the next few days. In addition, relief will be felt most notably on the West Coast where a natural gas pipeline explosion had sent prices skyrocketing, only to be fixed several days later, deflating the large rise in wholesale gas prices.

46 states saw average gas prices decline in the last week, while just those on the West Coast: Hawaii, California, Oregon and Washington, saw prices move higher. Great Lakes states again led the country with the largest decreases: Michigan (-10 cents), Ohio (-10 cents), Delaware (-9 cents), Indiana (-8 cents) and Kentucky (-8 cents).

States with the lowest average gas prices: Delaware ($2.56), South Carolina ($2.56), Mississippi ($2.57), Oklahoma ($2.58) and Louisiana ($2.58).

States with the highest average gas prices: Hawaii ($3.84), California ($3.82), Washington ($3.53), Oregon ($3.39) and Alaska ($3.33).