Sector Report4 min read

Energy: 11 A-Grades, Refiners Still Burning Cash

Sixteen companies improving, median FCF margin at 9%. But three refiners stay broken despite improving trends.

Aureus Research·Sep 11, 2026

The Headline

Energy just posted 11 A-grades out of 21 companies. The sector median FCF margin sits at 9%, and 16 out of 21 companies are showing improving trends. On paper, this looks like a healthy sector.

But that surface reading hides two critical details. First, the grade distribution is wildly polarized: 11 A-grades, five B-grades, then straight to one C, one D, and three F-grades. There's almost no middle ground. Second, half the F-grades belong to refiners, and they've been stuck there for months.

EQT: Highest Margin, Declining Trend

EQT Corporation leads the sector with a 33.2% FCF margin. That's an A-grade, and it's more than double the sector median. The problem? EQT is one of only three companies in the sector with a declining trend.

A 33% margin buys you forgiveness for a lot of sins, but trend direction matters. When the highest-margin name in your sector is moving the wrong way, it raises questions about what's happening at the operational level. EQT's balance sheet is clean, so this isn't a debt story. It's a cash generation story, and the recent quarters aren't matching the historical strength.

The A-Grade Cluster

Behind EQT, the A-grade list reads like a who's who of upstream and midstream players: CTRA at 20.6%, APA at 19.9%, Occidental at 19%, ConocoPhillips at 12.3%, Chevron at 9%, ExxonMobil at 7.3%. All improving. All generating cash in the high single digits to low twenties as a percentage of revenue.

Valero is the outlier in this group. A 4.1% FCF margin doesn't usually get you an A-grade, but Valero's balance sheet and cash conversion modifiers are strong enough to override the margin weakness. That said, a 4.1% margin in a sector where the median is 9% is still concerning, even with an improving trend.

The rest of the A-grade cluster is doing what energy companies are supposed to do when commodity prices cooperate: turn revenue into cash, keep debt manageable, and don't blow up the balance sheet chasing growth.

The Refiner Problem

Three of the bottom five names by FCF margin are refiners: Diamondback Energy at -4.7%, Phillips 66 at 2.1%, and Marathon Petroleum at 3.6%. All three are showing improving trends. None of that matters if the baseline margin is still below where it needs to be.

Diamondback is the most alarming. A negative FCF margin in a sector with a 9% median is hard to justify, even with an improving trend. The F-grade is accurate. Phillips 66 and Marathon are in slightly better shape, but a 2-3% margin in energy is barely treading water.

The refining business is structurally different from upstream oil and gas. Margins are thinner, capital intensity is higher, and cash conversion is harder. But that's not an excuse for bleeding cash or generating single-digit margins when peers are posting double digits. If the trend improvements stick, these names could climb out. But right now, they're anchors.

Debt Levels: Better Than Expected

The sector average debt-to-FCF ratio is 8.0x. That's not great, but it's not a disaster either. For context, a 10x ratio triggers a two-grade downgrade in the Aureus methodology. Energy is sitting just below that threshold.

The high debt load is concentrated in a few names. Most of the A-grade companies are managing debt responsibly relative to their cash generation. The problem is that when FCF margins compress, that 8x ratio can balloon quickly. Energy companies learned this lesson the hard way in 2020. So far, they're staying disciplined.

Trend Direction Matters More Than You Think

Sixteen improving trends out of 21 companies is a strong signal. It suggests the sector is in a recovery phase, not a peak-and-decline cycle. But the fact that three of the five non-improving names are high-margin players (EQT, Devon Energy, Williams Companies) complicates the story.

When low-margin refiners improve and high-margin producers decline, it creates a convergence dynamic. That's not necessarily bad, but it does mean the sector's margin profile could compress over the next few quarters if the trend holds.

The two stable trends are Kinder Morgan and Halliburton. Both are sitting in the middle of the pack with margins in the 7-17% range. Stability isn't exciting, but in a volatile sector, it's worth something.

What This Sector Needs

Energy needs the refiners to either fix their cash generation or exit the portfolio conversation entirely. Right now, they're dragging the sector average down and creating noise in the data. A sector with 11 A-grades and three F-grades shouldn't have a median margin of only 9%. The bottom tier is pulling too much weight.

The sector also needs EQT and Devon to stabilize their trends. Losing your two highest-margin producers to declining cash generation is a problem, even if the rest of the field is improving.

The Verdict

Energy is healthier than it was when we last looked at it in August. The trend count is better (16 improving vs. 12 last time), and the A-grade count is holding steady. But the refiner problem persists, and the highest-margin names are showing cracks.

This isn't a sector in crisis. It's a sector in transition. If the improving trends hold and the refiners figure out their margins, energy could be one of the stronger FCF stories over the next year. If EQT and Devon keep declining and the refiners stay broken, the polarization gets worse.

Right now, it's 11 A-grades doing the heavy lifting. That's enough to call the sector healthy. But it's not enough to ignore the three F-grades at the bottom.

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Data-driven analysis grounded in free cash flow fundamentals. Every grade, every insight, backed by real numbers from public financial statements.

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