Oil and gas extraction jobs increased by 100 to 177,400 in January, while support services jobs increased by 600 to 195,200 in December, its second increase in a row, according to U.S. Bureau of Labor Statistics (BLS) data.

Oil companies are starting to hire back workers as they add rigs to the shale patch in North America to take advantage of oil prices above $50 a barrel. After unprecedented spending cuts over the past two years, explorers are forecast to boost capital expenditures by 7 percent this year.

An analysis by the U.S. Chamber of Commerce found that the natural gas revolution generated more than 4.3 million jobs and injected nearly half a trillion dollars into the economy. It also determined that all those jobs would have been lost had the so-called “Keep it in the Ground” movement succeeded in suffocating the oil revolution.

In April, the company said it expected up to 12,000 employees to leave as part of the layoff program.

Employment in oil and natural gas production reached a high of 538,000 jobs in October 2014. Since then, oil and natural gas production employment declined 26%, a loss of more than 142,000 jobs through May 2016, based on the latest jobs data available. The total decrease in production jobs is nearly three times the 51,000 jobs lost over a 13-month period during the 2008–09 recession.

This can give some large industry players an advantage on future business projects, and can fundamentally harm American jobs.

Total upstream jobs in the state during May averaged 205,100, down 21.2% from the May 2015 average and 33% from the estimated high of 306,020 in December 2014. Estimates from the TPI show the trough in upstream employment before December 2014 was 184,640 in October 2009. During the previous growth cycle, industry employment peaked at 225,965 in October 2008.

As many as 120,000 oil workers will have lost their jobs in Britain by the end of the year compared to mid-2014 when oil prices started declining and unleashed sector-wide cost cuts, the industry's lobby group said on Friday.

Brazil’s troubled state-run oil company Petróleo Brasileiro SA on Friday announced a beefed up voluntary layoff program that could affect up to 12,000 jobs amid intense efforts to cut costs.

Halliburton Co., which provides well-drilling services for oil companies, is cutting 5,000 more jobs as the industry continues to struggle with slumping oil prices.