Are fossil fuel companies revealing enough about climate-change risks?

Prior to US President Donald Trump taking office, there was a push to require oil and gas companies to inform their investors about the risks of climate change.

As governments step up efforts to regulate carbon emissions, fossil fuel companies’ assets could depreciate in value over time.

The Securities and Exchange Commission (SEC), for example, was probing how ExxonMobil disclosed the impact of that risk on the value of its reserves. And disclosure advocates have been pressing the agency to take more decisive action.

Now that Republicans control Congress and the White House, will the SEC reverse course? And should it? The Trump administration’s apparent skepticism regarding climate change may portend such a change in direction. And Congress’s decision to roll back transparency rules for US energy companies in the Dodd-Frank Act suggests transparency policy more broadly is being loosened.

The terms of this debate, however, remain premised on the notion that investors don’t have enough information to accurately assess the impact of climate change on company value. Research, including ours, suggests they already do and that a compromise that improves the terms and conditions for voluntary disclosure might be optimal.

Such a change in direction would be good news for ExxonMobil in its fight with the SEC over climate-change disclosure.

Last year, ExxonMobil said 4.6 billion barrels of oil and gas assets – 20 percent of its inventory of future prospects – may be too expensive to tap. That would be its largest asset write-down. So far, the company has written down $2 billion in expensive, above-market cost natural gas assets. More write-downs – this time possibly oil sands – may be forthcoming. It’s not clear how much of that is tied to the risks of climate change, but some took it as evidence that the fossil fuel industry is not doing enough to inform investors about those risks.

Disclosure advocates in the US and Europe have been urging oil and gas companies to say more about the potential for their booked assets to become “stranded”. Stranded assets are mainly oil and gas reserves that might have to stay in the ground as a result of new efficiency technologies and policy actions that seek to limit greenhouse gasses.

The collapse in coal equities last year highlighted that concern. Intensifying price competition from cleaner energy sources such as natural gas and solar energy and the increasing cost of developing cleaner coal overwhelmed the industry’s declining revenue.

Whatever policy direction the SEC takes on climate risk, it is unlikely to deter those investors who believe the present system of voluntary and mandatory disclosure has failed to provide them with sufficient information.

And some market participants, such as Bank of England governor Mark Carney, worry that the under-reporting of climate-change information is creating a big risk for financial markets.

The SEC requires mandatory disclosure of all “material” information, while everything else is voluntary. This has created a vast amount of publicly available information on the costs and risks of climate change.

But as the ExxonMobil revelations highlight, the market clearly does not have all information. There are good reasons for this. For competitive reasons and business survival, certain company information is kept confidential and private.

Costs of carbon

Our research confirms that financial markets already price climate risk into oil and gas company stocks based on company reports and other data available from public and proprietary sources. These data allow investors to estimate reasonably accurately the effects of climate change on companies, including the expectation of write-downs.

For example, our work suggests investors first began pricing in this kind of data in 2009, when the scientific climate-change evidence about stranded assets first became known. Our research shows that the share price of the median company in the Standard & Poor’s 500 reflects a penalty of about $79 per ton of carbon emissions (based on data through 2012). This penalty considers all S&P 500 companies, not just oil and gas firms. This research also shows that investors are able to assess this penalty from company disclosures and the non-company information available on climate-change risk.

The penalty comprises the expected cost of carbon mitigation and possible loss of revenue from cheaper energy sources. Exxon, for its part, says it prices the cost of long-term carbon internally at $80 a ton, matching our market model.

The right mix

All this begs the question of what level of additional mandatory disclosure is needed to improve the “total mix of information available” for investors. With climate change a pressing concern, investors certainly have a right to demand more disclosure. But at what cost?

The cost of disclosure can be significant, and it’s not just the direct out-of-pocket costs that policymakers should consider.

Indirect costs, such as forcing oil and gas companies to disclose vital confidential information to rivals, could be particularly burdensome to some companies. And society could pay a heavy price if new rules lead companies to make unwise operating or investment decisions or postpone investment unnecessarily. Energy costs could increase or supplies decrease because of miscalculations. Additionally, the private sector is trying to fill the gap on its own. Moody’s Investor Service, for example, announced in June that it would independently assess carbon transition risk as part of its credit rating for companies in 13 sectors, including oil and gas.

Given these and other factors, rather than mandate any new disclosures now, we urge the SEC to first implement a voluntary programme along the lines of its programme in 1976 for the disclosure of sensitive foreign payments (like bribes). Its report on this programme showed no harm to the stock prices of participants after they disclosed payments.

This voluntary programme helped pave the way for the Foreign Corrupt Practices Act of 1977, which formalised the accounting requirements for bribery payments to foreign officials.

We would hope that a voluntary disclosure programme for climate change would achieve a similar goal: that is, formal SEC disclosure requirements that consider the interests of all parties. Such a programme could initially target a defined group, such as the 50 largest SEC-registered oil and gas firms.

That would give the SEC and private organisations like Moody’s, the additional hard data and experience needed to examine the costs, benefits and financial market impacts of climate-change risk disclosures.

Doing this would pave the way for more permanent rule-making to better serve the needs of investors, companies and, ultimately, the public. – The Conversation

Paul Griffin is Professor of Management, University of California; Amy Myers Jaffe is executive director for Energy and Sustainability, University of California.

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