Santos vs. Woodside: Why ASX’s Second-Largest Energy Stock Is Outperforming It’s Rival

Australia’s two largest listed energy stocks are shaping up rather differently in recent weeks, with Santos (ASX: STO) outpacing Woodside Energy shares (ASX: WDS) on a month-to-date basis despite carrying a market cap, and dividend yield less than half the size of its heavyweight peer. The divergence between the two has brought fresh attention to how markets are valuing growth versus income stability in the current energy cycle.

Santos shares have gained 5.04% over the past month and are up 39.02% since the start of 2026, an outperformance that has caused us to take a closer look at the relative value between the two energy giants. Woodside, by contrast, has slipped 2.5% over the same monthly period and has also shed 2.5% on the week, leaving it with a year-to-date gain of 33.6%. It has still been a strong absolute return for WDS holders, but one that trails its smaller rival, moreso in recent weeks.

The gap is not simply a function of momentum, as Woodside went ex-dividend earlier this month (Sep 3), paying out 79.5 US cents per share fully franked following a reported 27% increase in first-half net profit. That ex-dividend adjustment mechanically weighed on its headline monthly price performance, even as the underlying business delivered operationally. Santos, which went ex-dividend weeks before (Aug 24) at 16.3 US cents per share unfranked, saw its share price recover quickly and push higher through September.

Woodside Vs Santos: Income or Growth?

The Woodside vs Santos debate is about more than just income vs growth, but those two priorities would be better served by one or the other.

The macro backdrop of escalating geopolitical tensions in the Middle East and ongoing Red Sea shipping disruptions pushing oil prices above $100 this month have had an impact on the outperformance of STO. Santos historically exhibits a slightly higher sensitivity to unhedged spot oil and LNG price movements compared to Woodside, which benefits from a more structured long-term contract book. That higher beta characteristic means Santos captures more upside during sharp commodity rallies, while Woodside’s diversified scale provides a defensive buffer that paradoxically results in relative underperformance during rapid price moves.

The valuation picture between the two is more mixed than headline numbers suggest, with Woodside carrying a market cap of $60.09 billion, more than double Santos at $27.77 billion. On a trailing price-to-earnings basis, Woodside appears the cheaper of the two at roughly 14x, compared to Santos’ elevated trailing P/E of approximately 27x, but when you dig a little deeper, that trailing multiple for Santos is distorted by historical statutory write-downs, non-cash accounting adjustments, and one-off execution costs that do not reflect the company’s underlying earnings power.

Shift To Forward P/E Changes The Story

Strip those away and look forward, and the picture changes a lot.

Both companies trade at similar forward P/E multiples, with Woodside at ~12.7x and Santos at approximately 12.2x at the midpoint of analyst estimates. That is arguably the most important data point, because markets are not actually paying a premium for Santos relative to Woodside on a forward earnings basis but instead, recognising that Santos offers a materially stronger near-term production growth trajectory at an equivalent valuation.

The source of that growth centres on several project milestones. Santos recently reached continuous production at its Pikka Oil Project in Alaska, which is ramping toward a nameplate capacity of 80,000 barrels per day. Progress at the Barossa LNG development and expansion activity at PNG LNG are adding further volume to the pipeline, and the two collectively represent a clear and near-term path to earnings uplift that has not yet been fully priced into the stock.

Dividend Gap

Woodside’s capital expenditure profile tells a different story. Its major projects, including Scarborough, Trion, and Louisiana LNG, are largely oriented toward replacing production from mature and declining fields rather than generating meaningful net volume growth. In a market that is increasingly differentiating between companies that are growing production and those that are running to stand still, this matters. Woodside’s management has maintained an 80% payout ratio target, but the heavy capex burden has prompted some analysts to question the headroom available for future dividend growth, even as the company’s current fully franked yield of approximately 5.15% remains one of the most attractive income propositions on the ASX.

On the income side of the ledger, Woodside retains a clear structural advantage for yield-focused and superannuation-oriented markets. Its fully franked dividends carry meaningful tax credit value for domestic investors, and the combination of scale, balance sheet strength, and operational reliability continues to underpin its defensive appeal. Santos’ dividend yield of approximately 2.5% and unfranked status make it a less compelling proposition for income-focused portfolios, but that is not the market it is currently competing for.

What Lay Ahead

Energy price volatility remains the shared wildcard for both companies. Brent crude trading in a wide range introduces earnings uncertainty that forward P/E multiples cannot fully capture, and any sustained pullback in oil or LNG spot prices would pressure both stocks, though Santos’ higher beta would likely amplify the downside more acutely.

If Santos continues to execute on Pikka, Barossa, and PNG LNG on schedule and within budget, the earnings growth embedded in that 12.4x forward multiple should begin to materialise in reported results, potentially catalysing a further re-rating. The key risk is execution.

For Woodside, the near-term path will be determined by whether its capital expenditure cycle is closer to its peak than markets currently assume. If Scarborough and Louisiana LNG move toward completion without material cost overruns, the company’s free cash flow profile should improve meaningfully, providing greater confidence in dividend sustainability and potential yield growth. The fully franked dividend remains a powerful draw for domestic income markets, and Woodside’s operational reliability and scale give it a balance sheet resilience that Santos cannot yet match.

For now, it looks like Santos and Woodside are serving different segments of the same market, with Santos attracting capital appreciation flows on the back of a credible production growth story, and Woodside holding its ground as the ASX’s premier energy income play. That outperformance can be pointed to the forward P/E in part, with the recent oil price boost providing the same for the more sensitive STO.