With global consumption of about 75 million barrels per day, even a million barrels per day coming on line years from now is a drop in the bucket and will have minimal effect on oil prices.
Here is another question: why do people think that all the oil pumped will stay in the US? Now, you may be scratching your head, thinking I'm goofy, but who exactly will own that oil? The leases will be to the same multinational companies who control it now.
Exxon Mobile has no allegiance to the US. They have an allegiance to themselves, their stockholders and their brethren in the industry. That oil will be part of the global supply and not earmarked just for US consumption. Once again, the impact at the pump for everyone will be minimal.
The oil companies will be the winners, as they always are. And the government will rake in tens of billions from the leases, but the public will not benefit one iota from it. The taxpayers never do. The cycle never ends of you being hoodwinked into transferring the riches of public resources to the pockets of large companies by congressional edict.
Politicians and the media are nothing but trolls, drawing you into their web of lies. You grasp at these petty issues and divisiveness and do the bidding of politicians as fanboys, falling into one camp or the other, oblivious to fact that neither of the two people propped up before you are worth a damn.
Have any of you ever had a gas station tell you that they are out of gas? There just isn't enough and you'll have to line up for some tomorrow or the next day? I don't think so. There is no gasoline shortage or oil shortage. The demand is met every day. It's amazing that they have gotten you to quibble about something you can buy as much as you want. You pay more for a gallon of water at the convenient store or a coffee at Starbucks than you do for a gallon of gas, but are being manipulated like trained monkeys to screech about gasoline.
Most of the rest of the world pays much more than you do for gas. I was paying about $4 per gallon for the last 10 years and paying about $7 per gallon now. Shut up already about gas prices.
If $4 per gallon is making you go broke, you have bigger fish to fry. About 50 million people in the US still have no health insurance. What is up with that? The true national debt, including unfunded Social Security and Medicare obligation is now $330,000 per person. You have a family of four? You are $1.3 million in debt if you want to get Social Security and Medicare when you retire.
And you're complaining about $4 per gallon gas?

Vote all the bastards out and start again. Your problem is not gas prices, your problem is a government spending money that you haven't even earned yet, but they intend to confiscate from you.