Exploration spending is heading up, and SLB and Baker Hughes point to the war involving Iran and its disruption of oil supply as the reason. That is the call from two of the world's largest oilfield service companies, as reported by Reuters, and it carries weight because both firms sit at the front line of every drilling decision their customers make.

Both companies read the same signal from the market. When supply routes and producing regions come under threat, oil buyers and producers alike start asking the same question: where else can barrels come from? The answer, eventually, is new wells — which means new contracts for the service sector.

Why does a war translate into drilling budgets?

The logic runs through price and security of supply. Disruption in and around the Gulf puts a premium on barrels that don't depend on that corridor. Producers outside the region — in the Americas, West Africa, the North Sea — suddenly look more attractive to buyers who want dependable cargoes.

For service companies, that shift shows up first in conversations, then in contracts. SLB and Baker Hughes both see their customers preparing to spend more on exploration, the riskiest and most price-sensitive slice of the upstream budget. When exploration dollars move, the rest of the spending chain — appraisal, development, production facilities — tends to follow.

The takeaway: the service majors believe the disruption has pushed operators from watching prices toward actually budgeting for new drilling.

What does this mean for the rig count?

Rig activity is the number the trade watches, and exploration spending is its leading indicator. If the two biggest service players are right, the drilling rigs now stacked or working reduced hours in basins from the Permian to the Vaca Muerta could start earning their keep again.

That doesn't happen overnight. Operators commit to exploration wells on the basis of sustained prices, not a few tense weeks. A war premium that fades quickly leaves spending plans unchanged. One that persists gives finance departments the confidence to sign off on wildcat wells and seismic campaigns.

So the watch item here is duration: how long the supply disruption holds, and whether operators treat it as a new baseline or a passing shock.

Who benefits first?

SLB and Baker Hughes are, in a sense, describing their own order books. Exploration work means:

• seismic acquisition and processing
• drilling services and bits
• formation evaluation and logging
• early-stage well construction

That is the toolkit both companies sell, and a rising exploration cycle fills it faster than any other part of the upstream value chain. Their smaller competitors — Weatherford, Halliburton in overlapping lines, the niche seismic players — would ride the same wave.

The companies' own view, in short: disruption has made exploration money move again.

What could still go wrong?

A quick de-escalation is the obvious risk to this forecast. If supply flows normalize and the war premium drains out of the price, operators can shelve exploration plans without penalty — the lead time on those projects means little is lost by waiting.

There is also the possibility that operators respond to supply anxiety with spending on existing producing assets rather than new exploration, which would favor maintenance and workover services over frontier drilling.

For now, though, both service majors are telling the market the same thing: the Iran war has pushed exploration spending off the fence. Watch the rig counts and the seismic tender announcements over the coming quarters to see if the operators agree with their wallets.