You need resources plus energy input along with the labor, which is another form of energy input, to create value added manufactured wealth.
Not sure on other industries, I follow the food scene more, but I can tell you right now the way the system is set up, we are a single, as in one, solitary, geopolitical "whoops!" away from mass famine on a global scale. It wouldn't happen immediately overnight, but it would cascade out of control and could probably lead to a slew of "regime changes" and so on around the world, "social unrest", and have a lot of blowback to other industries then on to the service and management and government "industries". And I am not exaggerating in the slightest.
This is why, despite working on a farm and having "income" as it is commonly known and understood, I also produce my own wealth, I grow "extra" and have sunk a lot of of my cash and time investment potential into creating my own mini wealth production effort, which includes onsite diversified food production plus my own energy production in the form of solar PV and firewood, that is not entirely tied to availability of cheap energy inputs, and have accumulated the tools and skills to maintain this outside of the system being intact.
And I'll tell you why. The larger ag scene is 100% dependent on cheap, ever flowing diesel and natgas associated fertilizers and chemicals and so on, as is the packaging, transportation and distribution aspects of the whole "farm to table" stack. There does not exist the quantities of "natural" fertilizer or alternative liquid fuels for there to be any even medium scale emergency replacement. Just doesn't exist, can't be done. the only place it exists is right now in the poorest nations who still rely on animal power for farming, etc. They won't change much, but they can't produce any beyond their own subsistence levels either.
Now, because we have let speculators and the higher level wealth skimmers dominate "the market" and governmental policy, and tied the banking "industry" into ag so heavily, plus caused a focus on patented seeds and IP so much, all of that, they make more money by having higher demand in times of lower production. It isn't regulated like it would be if food and energy were treated as national security issues, I mean beyond what they claim to do with "terrorism", it would need to be more than that even to have true food insurance.
They don't care. No short term profits in it. There's massive short term profits in NOT caring,, so that's what they do.
When they light up Iran, which will come eventually, that's it, crude goes to hundreds a barrel or more overnight from speculators, the supply drops drastically on a global scale, then these costs go down the "food chain" and..well..all the food production stack goes completely bankrupt, busted. It ceases. Food commodities themselves, immediately after most energy sources, will get bid up to extreme levels in "the market", instantly putting a few billion people here and there out of the "buy and eat some food" level. Not a few thousand, a few billion, then spreading out from there, and fast. Even guys who have hedged their own production with derivatives will be forced to honor what they thought would happen, so they will lose a lot there, most of them anyway.
Just even mild/moderate price and availability run ups have shown how fast this occurs, just the slight loss of refined useable petroleum products after Hurricane Katrina shows this, and how other energy sources get tied to the cost and availability of global crude sources, because what industries can, switch to other forms of energy. But a lot can't. Food is one of them, in spades.
We have no immediate substitute for crude (diesel and bunker fuel) that can be deployed in the quantities needed to maintain the entire ag stack. We don't even have backup emergency trains/locomotives that could run on coal anymore either. Any break in that stack-no ag, bye.. But, the banks still want their money for their loans, and on up the chain to goldman sachs type sliced and diced paper financial products, those big traders still want and will get their money. The government, federal/state and especially local, still will want their tax monies, but it won't be there, because wealth production will cease.
Truckers will abandon their rigs and walk away, farmers will tell the bank to come and pickup their tractors, etc. It'll collapse. Guys will just walk away, disgusted and heart broken, but our past track record in this nation is wall street and the government *don't care* because they make more short term profit and get a LOT more political power out of emergencies.
It's dang iffy right now and barely profitable as it is with current production costs versus income. I mean, barely, and most farmers are in hock up past their eyebrows, and can barely maintain energy costs as it is. Most are entirely dependent on yearly loans, loans set with the expectation that cheap energy will always be there, and priced accordingly. Local governments are set up to extract x-property taxes, and that's it, and most of them are already hurting as it is all over the nation being in debt and having to issue bonds or placing additional future debt loads on an unpredictable economy.
You quadruple energy prices in a short time frame, plus throw global warming taxes into the stew, which a big war around the middle east and loss of straits of hormuz shipping would cause, along with the political agenda of instituting the green police and more governmental bureaucracies and handing wall street another trillion a year in cap and scam carbon credits to gamble with..well, shoot... party's over, fast.
And it will ripple out from there, into many other true wealth production non ag but still critical areas of the economy, now down to ten percent of the whole economy, and there is NO will or plan or option to eliminate middleman speculator profits in this scenario, it will not happen, they will be allowed to take advantage of the situation. And even if they did freeze that in place, it still doesn't address availability issues.
And we have no credible sources for such a severe loss of energy sources or the increase in prices for what is still available. We have a barely out of the starting gate biofuels industry which *could* be economically and resource self-supporting, then turn a real profit in both dollars and wealth production, and be able to slide away from dependence on petroleum products in general, soon if they threw a fraction of the resources at it as they spend on war profits, but they don't, and the population has been faked out that it isn't possible anyway, so they are killing it off when it is just getting to the point of being a viable option. They have everyone brainwashed into believing the baby steps transition effort we have today with biofuels is the full complete endgame. Short attention span theater there.
As I have pointed out before, this nation (and most nations really) no longer maintains a full season or beyond of backup basic foodstuffs, enough to deal with such a catastrophe, enough to try and keep everything running even on a reduced emergency scale. They stopped commodity buying for seasonal price supports and warehousing some years ago, switched to offsets and paying FRNs to not grow, switched to food stamp credit cards instead of handing out boxes of real food, etc., and finally sold off the last of our national pantry backup. It's all gone, poofed away. There exists no "backup food" to carry the nation over through any medium disruption time scale, and this is a rich nation, it is worse for many other nations globally.
Maybe 1% of the US population understands this and has made their own contingency plans, or maybe even less. Even most professional farmers aren't planning for this, they are just as dependent on the food supply chain down to the supermarket as everyone else is. I know on this farm I am the *only* guy who stockpiles food in any decent quantities and runs a big garden now, the rest of the guys just do the normal "get their check, go to the supermarket before they run out" scene. A couple of the guys before had their own little gardens, but they quit or got fired.
We have very few people left alive in the US who have an historical awareness of true food shortages, etc, andjust about everyone is relying on paper insurance policies, server entry wall street "investments", and "government" to "save them" in this sort of situation. And that's if they have even thought about it, and most people have not, or dismissed it as "too improbable, so it just can't happen, this "they" guy, some great OZ figure "they", wouldn't allow that"
Man, that is epic fail in advance. Believing in the tooth fairy as official high stakes policy and general across the board mindset.
This isn't a plan to try and pour six gallons of real stuff from a five gallon bucket, like the economy is now, which is bad enough obviously, it is trying to pour six gallons from a zero gallon bucket. Just ain't gonna happen. And that scenario has just a dandy chance of occurring given our abundant global supply of the "natural resource" of quite insane megalomaniacs "in charge" all over in government and big business. Emergencies today don't bring out the statesmen, that's long gone from national scenes all over, "statesmen" don't exist, they turn what nutso doofuses we have now masquerading as leaders into clones of kim ill dung, that level of "leadership".
I think it will be man made fast extinction event once it starts. Take a few years to run its course, and it would be rather nasty as this was going on, and I expect a lot of weapons used eventually to sort out who might own what, which will lead to a lot of people not really owning much more than rubble and hunger.