Decades after Shell began producing oil in Nigeria’s Niger Delta, a cache of internal company documents has brought fresh scrutiny to the condition and management of the pipelines that carried its crude.
A new report by Amnesty International and partner organisations, published on 29th of July, 2026, analyzes emails, audits, presentations and confidential reviews disclosed through UK legal proceedings. The documents, dating largely from 2008 to 2014, describe a series of concerns around pipeline integrity, maintenance, leak detection and the management of ageing infrastructure.
Among the most striking findings is the condition of the Nembe Creek Trunk Line, an older pipeline that was replaced in 2010 but was not fully decommissioned. An internal 2014 email reportedly stated that about 80 kilometres of the old line still contained stagnant crude, despite six operational spills since its replacement. The document described the pipeline as “a basket” and warned that further spills could occur without urgent action. According to Amnesty, budget constraints were a major factor in the delay.
The report also highlights a wider maintenance problem. Internal audits reportedly recorded more than 1,600 pipeline clamps, including older clamps that had become permanent repairs and whose locations were no longer known. A 2012 technical review found that SPDC flowlines were intended to be replaced every 15 years, but that this requirement was not being followed, with maintenance instead largely carried out only when equipment broke down.
A problem with seeing the problem
The documents also raise concerns about how quickly pipeline failures could be detected.
According to a 2013 internal report cited by Amnesty, SPDC's pipeline network did not have a real-time monitoring system. That meant smaller leaks could potentially remain undetected until they became more significant. Another internal finding suggested that Shell personnel were not always equipped to reliably distinguish spills caused by corrosion from those caused by third-party interference or oil theft.
That distinction is particularly important in Nigeria because the classification of an oil spill can affect compensation obligations. Amnesty argues that weaknesses in spill investigation could therefore have consequences beyond environmental monitoring, potentially affecting whether communities receive compensation for damage.
The documents also reportedly revealed that hundreds of SPDC's onshore wells were either missing from its electronic tracking system or could not have their condition verified at the time. A subsequent “well hunt campaign” identified 750 overdue maintenance tasks, contributing to what an audit described as an unsatisfactory rating.
The $10.9 billion question
Perhaps the biggest financial issue raised by the report concerns what happens to ageing infrastructure when an operator leaves.
An internal report sent to Shell's then-CEO in 2014 estimated that decommissioning all existing SPDC assets could take decades and cost approximately US$10.9 billion, apparently excluding clean-up costs. Another internal presentation identified 375 square kilometres of mangrove forest as having been affected by pollution.
Shell subsequently completed the sale of its Nigerian onshore business to Renaissance Africa Energy in 2025. The divestment has made the question of legacy infrastructure and environmental liabilities even more significant, particularly over who ultimately bears the cost of cleaning up and decommissioning ageing assets.
Shell, however, has rejected Amnesty's characterization of its operations. In its response to the organization, the company said it remained committed to conducting its business ethically and transparently and argued that the findings did not adequately reflect the “challenging operating environment” in the Niger Delta at the time. Shell has also consistently maintained that oil theft and sabotage have been major causes of spills in the region.
For Nigeria's pipeline industry, the revelations raise a broader question: how should operators manage the technical and financial risks of ageing infrastructure when maintenance, monitoring and eventual decommissioning compete with the economics of keeping oil flowing?
As the country continues to attract investment into its oil and gas infrastructure, the case highlights why pipeline integrity cannot be separated from long-term liability. A pipeline may remain commercially valuable for decades—but the cost of what is left behind can last even longer.
References: https://www.amnesty.org/en/documents/AFR44/1304/2026/en/?
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