Record fuel bill tests Delta's 20% earnings growth promise
Delta Air Lines made $1.4 billion in adjusted pre-tax profit in the June quarter while paying the highest quarterly fuel bill in its history. Its full-year growth promise now depends on outrunning fuel, and a Wall Street Journal report finds energy costs also climbing in Walmart's automated warehouses.
Context for builders, not their beat.
Two bars. Electricity at an automated grocery facility cost about $250,000 a month before. It can now cost as much as $800,000 a month, according to a Wall Street Journal report on Walmart's automation.
| Measure | Value | As of | Claim |
|---|---|---|---|
| Previously (about) | $250,000 per month | 8 | |
| Now (as much as) | $800,000 per month | 8 |
What happened
- Delta affirmed full-year guidance for adjusted earnings per share of $6.50 to $7.50 and free cash flow of $3 billion to $4 billion.
- For the September quarter, Delta expects mid-teens revenue growth and a double-digit margin.
- At Walmart, electricity for an automated grocery facility can cost as much as $800,000 a month, compared with about $250,000 before, according to a Wall Street Journal report.
- Walmart opened its fifth next-generation fulfillment center, a 900,000-square-foot automated site in Stockton, California.
Why it matters
- What it costs cost At the Journal's upper figure, an automated grocery site pays about $550,000 more a month for power, roughly $6.6 million a year. Walmart also pays more for the engineers who maintain the machines.
- What it limits constraint Delta has reaffirmed a growth target it set at the start of the year. If fuel costs rise further, a risk named in its own disclosures, revenue has to cover the gap or Delta misses a public commitment.
- Who has to decide decision Each new Walmart site, including the planned 1.5-million-square-foot Carnesville center, takes on the higher power bill as soon as it runs. The article says the labor savings come only eventually, so power prices now belong in the payback case.
The $1.4 billion is the adjusted figure. On a GAAP basis, Delta reported $2.0 billion of pre-tax income on $19.8 billion of operating revenue, a 10.2% margin [5]. Its adjusted pre-tax margin was 7.7% on $17.7 billion of revenue [1]. The release does not give the quarter's fuel bill in dollars.
Bastian did put a size on the stake for the full year. "For the full year, we are affirming the guidance we set at the start of the year to grow earnings by 20%, overcoming a multi-billion dollar fuel headwind," he said [6]. Delta's exposure goes beyond the price of jet fuel. Its risk disclosures list higher fuel prices and extended supply disruptions, including disruptions at Monroe Energy, the wholly owned subsidiary that runs its Trainer refinery [7].
At Walmart, the energy cost is in the warehouses. Supermarket News reported that, according to the Journal, power for automated facilities is considerably more expensive, and the engineers who maintain the equipment cost more than typical warehouse workers [9]. The Journal's top monthly figure is 3.2 times the old bill [14]. That figure comes from a single report, and a Walmart spokesperson could not be reached for comment [10]. The labor savings come later. Walmart employs more than 140,000 warehouse workers, and the article says the warehouses will eventually need less labor [13].
We think energy is clearly an earnings variable at Delta, where management has tied a full-year earnings promise to overcoming fuel [6]. Walmart's evidence is narrower: one reported power bill for one type of facility [8]. That supports the view that energy is now part of the cost of automation. It is not enough to show how much the cost moves company earnings.
What to watch
- Delta's September-quarter report: whether the double-digit margin holds and whether Delta gives the fuel bill in dollars.
- A Walmart response to the Journal's report, or any company disclosure of power costs across its next-generation fulfillment network.
Claim ledger
Ranked by verification strength, evidence, and original report placement.
- [1]
Delta's June quarter 2026 non-GAAP results: operating revenue of $17.7 billion, pre-tax income of $1.4 billion with a pre-tax margin of 7.7%.
- [2]
"We delivered $1.4 billion in pre-tax profit while absorbing the highest quarterly fuel expense in our history, reflecting broad demand strength, growing brand preference and momentum across our diversified revenue base."
- [3]
Delta affirmed full-year guidance for adjusted EPS of $6.50 to $7.50 and free cash flow of $3 to $4 billion.
- [4]
Delta expects continued momentum in the September quarter with mid-teens revenue growth and double-digit margin.
- [5]
Delta's June quarter 2026 GAAP results: operating revenue of $19.8 billion, pre-tax income of $2.0 billion with a pre-tax margin of 10.2%.
- [6]
"For the full year, we are affirming the guidance we set at the start of the year to grow earnings by 20%, overcoming a multi-billion dollar fuel headwind."
- [7]
Delta's forward-looking statement risks include increases in the price of aircraft fuel and extended disruptions in the supply of aircraft fuel, including from Monroe Energy, LLC, its wholly-owned subsidiary that operates the Trainer refinery.
- [8]
Electricity can cost as much as $800,000 per month at an automated grocery facility, compared with about $250,000 previously, according to a Wall Street Journal article on Walmart's automation.
- [9]
The engineers required to maintain Walmart's automated equipment cost more than typical warehouse workers, and the power required to run the automated facilities is considerably more expensive.
- [10]
A spokesperson for Walmart could not be reached for comment about the report.
- [11]
Walmart opened its fifth next-generation fulfillment center, a 900,000-square-foot, highly automated facility in Stockton, California.
- [12]
Walmart recently announced a sixth next-gen fulfillment center planned for Carnesville, Georgia, measuring 1.5 million square feet.
- [13]
Walmart currently employs more than 140,000 warehouse workers, and eventually the warehouses will require less labor, according to the WSJ article.
- [14]
The reported top monthly power cost at an automated grocery facility is 3.2 times the previous cost.
- [15]
At the upper figure, the power bill rises by about $550,000 a month, roughly $6.6 million a year per facility.
Sources & coverage · 2 publishers
The reporting this story was synthesized from, earliest first. Every link goes to the original.
- news.delta.comJul 9Delta Air Lines announces June quarter 2026 financial results
- supermarketnews.comOct 9Walmart’s troubles with automation