The oil companies CAN increase output. However, they chose not to do so, because they can then claim that their obscene price increases are due to the laws of supply and demand. They purposely make sure that the supply just about matches the demand. The price at the pump is determined by two things, how much OPEC thinks that they can price gouge us, and how much the oil companies think that they can price gouge us. The laws of supply and demand have nothing to do with it. In the early part of the last century, the states and federal government decided that because the public simply cannot do without certain things (such as electricity and water) and since the companies providing those things were working together to fix prices and price gouge the public, laws were needed (and put in place) to stop price collusion, price fixing, and price gouging. The laws worked, and we got water and electricity at reasonable prices, while the companies made a reasonable profit. Of course, these regulations have now either been repealed or are ignored by government. The result has been a return to the old, standard, operating procedure by the companies, price collusion, price fixing, and price gouging. To stop this with respect to oil, we need to regulate the oil companies and what they charge, just as we used to regulate the water and electriclty companies. And don't tell me that it wouldn't work. It worked in the last centrury for the water and electricity companies and it would work in this century for the oil companies.
At the same time, we need to counter OPEC with an OFEC (Organization of Food Exporting Countries). The OPEC nations need the unprocessed (such as grains) and the processed food products produced by such nations as the US, Canada, and Australia to feed their people. The food producing countries should create an OFEC. They should then increase the price of food exports by the OFEC nations to the OPEC nations in the amount necessary to recoup that part of the price that OPEC charges for oil that is determined to be above a reasonable price. The money gained from the extra charge for the food would then be returned to those people in the OFEC countries that use petroleum products, primarily gas of course. A mechanism could be put in place by which people keep track of how much gas they buy (with adequate proof of those purchases), so that OFEC would know how much to reimburse the people for that part of their gas purchases that is determined to be the result of price gouging by OPEC.