When companies see workers making more money, they raise their prices. Happens all the time. Americans have amassed rather large savings over the last two years from not purchasing services and are buying goods instead, stretching the supply chain.
In case you haven't been paying attention (it shows) shareholders earnings reports are done over the phone and everyone listens in and asks questions of the company CEOs. Even reporters are allowed to listen in and they have reported on what they were told.
By law, they have to be honest, and they are rather blunt about how they've made such huge profits: they raised the costs and saw no resistance so they kept on raising them and say they will continue to do so until the public has had enough. Read a newspaper or watch some reputable source of news, instead of getting the skinny from a Walmart employee.
Keep in mind that when a company raises the price of something due to their having to pay more for it, the net profit margins would not reflect it if the price increase were equal to their cost of procuring it. Companies are experiencing huge net profits over and above what would account for that. Just take a look at their earnings. It's publicly available.
Add in monopolies and all the mergers resulting in loss of competition and price fixing/gouging becomes a feature and not a bug.
As for the price of oil, of course it's behind everything. Oil is fungible and Russia's latest antics have raised it about $30 higher than it would have been to around $96/barrel and it's predicted to hit $120 which they will heavily profit by. Anyone in the WH can't be blamed for that so stop with the rants. In fact, history shows that unless you have some bonehead in office (like TFG), a president is not responsible for inflation, but is a victim of it, like the rest of us. Biden could rescind Rump's stupid tariff on Chinese goods (which was passed onto us-talk about an idiot) but the other side would say he gave them a gift when, in fact, it would lower the costs to consumers. But the public is an uneducated and fickle lot there's that.
Imagine if we were not dependent on other nations for our energy.
All the best,
Nonoise