Wall Street money helped fuel the North American energy boom in recent years. Now that oil prices have collapsed, Wall Street is again looking for ways to profit.

Goldman Sachs is seeking to raise capital from wealthy individuals and other investors for a new fund to invest in the debt of troubled companies in the energy sector, according to confidential marketing materials obtained by DealBook.

The fund, being raised by Goldman’s asset-management business, will invest mostly in high-yield corporate credit, the document shows. Known as the Energy Investment Opportunities Fund, it will also buy investment-grade credit and secured bank loans.

The effort by Goldman, which has not previously been disclosed, is among many on Wall Street to capitalize on the turmoil among oil and gas companies. Oil prices lost about half their value in the second half of 2014 and continued falling in early 2015, though they recently have recovered modestly. That has put pressure on a range of energy producers and the funds that invested heavily in them.