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Nigeria’s crude oil production is struggling to record sustained growth despite billions of dollars invested in drilling activities and increased deployment of oil rigs over the past decade, raising fresh concerns about the health of the country’s petroleum industry.
Industry data reviewed by Vanguard indicate that 2,099 rigs were deployed in Nigeria between 2016 and 2026, with annual deployment reaching a high of 360 rigs in 2018 and falling to 87 in 2021. Yet the increased drilling activity has not translated into a corresponding rise in crude production.
Nigeria recorded crude production, excluding condensates, of about 1.734 million barrels per day in 2019, before output fell sharply to approximately 1.143 million barrels per day in 2022.
One of the major challenges is the declining productivity of Nigeria’s mature oil fields.
Data from the Nigerian Upstream Petroleum Regulatory Commission cited by Vanguard show significant year-on-year production declines at several established assets. The Abo field, operated by Eni/Agip, fell 39.2% to 6,870 barrels per day in June 2026, while Pennington declined 45% to 3,880 barrels per day. Ugo Ocha dropped 16.6% to 26,900 barrels per day, while Sea Eagle declined 8.3% to 14,570 barrels per day.
The situation highlights a fundamental problem: more rigs do not automatically mean more oil.
Many Nigerian fields have been producing for decades. As reservoirs mature, natural pressure declines and water production can increase, meaning operators must invest in workovers, infill drilling, artificial lift and enhanced oil-recovery technologies simply to maintain production.
Industry experts therefore argue that Nigeria must move beyond merely increasing exploration expenditure and focus more aggressively on maximising production from existing assets while accelerating the development of new fields.
Petroleum economist Prof. Wumi Iledare warned that declining production has consequences far beyond the oil industry because it reduces government revenue, foreign-exchange earnings and external reserves. He called for faster regulatory approvals and greater investment in technologies capable of recovering additional oil from mature fields.
Nigeria’s production difficulties could also weaken its influence within OPEC+. The country once produced about 2.5 million barrels per day in November 2005, but national output including condensates has struggled to move beyond roughly 1.7 million barrels per day in recent years, according to Vanguard’s analysis.
The challenge is particularly important because crude oil remains a major source of Nigeria’s foreign-exchange earnings and government revenue.
Industry analysts identify several obstacles beyond ageing fields, including underinvestment, crude oil theft, pipeline vandalism and delays in bringing major new projects into production.
The numbers therefore present an uncomfortable reality for Africa’s major oil producer: Nigeria is drilling, but it is not producing enough additional barrels to match the scale of investment.
The policy challenge is no longer simply how many rigs are operating. It is whether Nigeria can turn exploration spending into commercially recoverable barrels, revive mature fields, accelerate new projects and restore production towards its historical potential.
The critical question is: If billions of dollars and thousands of rig deployments have not delivered sustained production growth, what exactly is holding Nigeria’s oil industry back?
