Why the Santos (ASX:STO) share price is edging lower today

The company's shares are slipping after an update on a proposed merger.

| More on:
worker in hard hat at an oil refinery

Image source: Getty Images

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More

The Santos Ltd (ASX: STO) share price is heading south on Monday morning. This comes after the energy giant provided an update on its proposed merger with Oil Search Ltd (ASX: OSH).

At the time of writing, Santos shares are swapping hands for $6.17, down 1.28%.

What's sending the Santos share price lower?

In today's release, Santos advised it has agreed with Oil Search to extend the due diligence period for another week.

Early last month, Santos increased its offer to acquire Oil Search shares under a revised merger proposal.

The offer put forward for Oil Search shareholders to receive 0.6275 new Santos shares for each Oil Search share held. This is a slight increase from the earlier rejected proposal that presented 0.589 per Santos share for every Oil Search share owned.

As a result, Oil Search shareholders will own roughly 38.5% of the merged group, as opposed to 36.9% in the original offer. Santos shareholders will control the remaining 61.5%.

In monetary terms, the transaction translates to a price of $4.29 for each Oil Search share based on the closing price of Santos and Oil Search shares on July 19 (the day prior to disclosure of the first proposal).

While exclusive mutual due diligence is being conducted, both companies have until 13 September to proceed on the deal.

If successful, the Oil Search board will recommend its shareholders to vote in favour of the revised merger proposal.

Both Santos and Oil Search are pushing to become the ASX's largest oil and gas company and a top 20 global player.

The super-company would effectively hold a diversified portfolio of long-life and low-cost assets with significant growth options.

No doubt this could have a positive effect on the Santos share price in the future.

About the Santos share price

The Santos share price has been moving in circles in 2021, slipping 4% over the last 9 months. While generally flat for the period, when looking from this time last year, the company's shares have gained almost 18%.

On valuation metrics, Santos commands a market capitalisation of roughly $13 billion, with more than 2 billion shares outstanding.

Motley Fool contributor Aaron Teboneras has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has no position in any of the stocks mentioned. The Motley Fool Australia has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Bruce Jackson.

More on Share Market News

Fancy font saying top ten surrounded by gold leaf set against a dark background of glittering stars.
Share Gainers

Here are the top 10 ASX 200 shares today

The ASX was back in the green this Wednesday.

Read more »

Businessman working and using Digital Tablet new business project finance investment at coffee cafe.
Broker Notes

Buy, hold, sell: How does Morgans rate these ASX shares?

Morgans has been looking at a couple of popular shares.

Read more »

A man pulls a shocked expression with mouth wide open as he holds up his laptop.
Broker Notes

Why this beaten down ASX 200 stock could rise 50%

This stock could be dirt cheap according to analysts at Bell Potter.

Read more »

A male sharemarket analyst sits at his desk looking intently at his laptop with two other monitors next to him showing stock price movements
Share Market News

4 pros and cons of buying the Vanguard Australian Shares ETF (VAS) in 2026!

This popular ETF isn't a slam dunk...

Read more »

A young woman holding her phone smiles broadly and looks excited, after receiving good news.
Share Gainers

Why 4DMedical, Regis Resources, Unico Silver, and WiseTech Global shares are pushing higher

These shares are having a good time on hump day. But why?

Read more »

Frustrated stock trader screaming while looking at mobile phone, symbolising a falling share price.
Share Fallers

Why Bellevue Gold, Harvey Norman, Karoon Energy, and Westpac shares are falling today

These shares are having a tough time on hump day. But why?

Read more »

woman testing substance in laboratory dish, csl share price
Share Market News

After a 73% surge this ASX healthcare share looks far from done

Brokers are upbeat, and some see possible gains of 90% in 2026.

Read more »

A man in his 30s with a clipped beard sits at his laptop on a desk with one finger to the side of his face and his chin resting on his thumb as he looks concerned while staring at his computer screen.
Share Market News

Magellan Financial Group dips as AUM slips in December quarter

Magellan Financial Group's AUM declined to $39.9 billion at December 2025, with net outflows for the quarter.

Read more »