
Steffen Ullmann
Senior Portfolio Manager – Investment Grade
The current weakness in oil is leading to higher risk premiums – but beneath the surface, the sector is changing fundamentally. The ongoing consolidation in the oil service segment is structurally strengthening business models, improving cash flow quality and creating new investment opportunities. Why selective credit investors should now take a particularly close look.
Trend reversal in the energy service sector: consolidation follows recovery
The energy service sector was under pressure for a long time. However, we have seen a turnaround over the past three years: The industry generated over 50 billion US dollars in net revenue, while at the same time debt fell to its lowest level since 2016 (Source: Deloitte 2025 Oil and Gas Industry Outlook, December 2024.) This recovery initially took place without any major consolidation movements. However, this is changing with the return to profitability and more stable business development. Over the past twelve months, market consolidation has picked up significantly. Several transactions such as the merger of Saipem and Subsea7 or the takeover of ChampionX by Schlumberger underline this.
These transactions indicate a renewed wave of market consolidation, which should lead to the five largest providers increasing their combined market share from 66% in 2024 to around 73% in 2025. This will bring the market distribution back closer to the levels seen in 2017/18.
Sales & market share development

Source: Bloomberg, own calculation; Methodology: Sector: Oilfield Services & Equipment, companies with a market capitalization of USD >1 billion, Regions: North America & Europe, Filter: At least 50% share of sales from Oil Field Services according to BICS classification; as of 20.03.2025.
Between price pressure and structural change: consolidation opens up credit opportunities
The latest developments on the oil market – in particular the fall in oil prices – have led to a significant widening of risk premiums in oil price-dependent sectors (see Chart 2). This spread movement appears exaggerated from a fundamental perspective. It reflects not so much an actual deterioration in credit quality as sectoral risk aversion.
Historical development

Source: Bloomberg, Bloomberg Global Oil Field Service (I04105 Index) and Bloomberg Global Corporate Baa (I09619 Index) Own calculation: Ratio = OAS Spread (sector) / OAS Spread (benchmark), oil price (EUCRBRDT Index)Period: 31.12.2015 to 30.04.2025.

Source: Bloomberg, Crude Oil Dated Brent FOB NEW (EUCRBRDT Index).
It is precisely in this environment that opportunities arise for selective credit investors. The ongoing consolidation in the oil service sector is not only changing the market structure, but also structurally strengthening well-positioned providers. Economies of scale, stronger market positions and improved cost structures have a positive effect on cash flow stability and therefore creditworthiness – and thus create a fundamental counterbalance to the current market volatility.
Table 1 shows the specific opportunities and risks arising from this development:
Opportunities and risks of consolidation in the oil service sector
Opportunities |
– Greater financial stability for market leaders: economies of scale and better cost structures increase profitability and reduce the risk of default. – Improved cash flow visibility: Less competition and greater market control of large providers ensure more stable earnings. – More favorable refinancing options: Leading companies with a better credit rating benefit from lower financing costs and a capital structure that can be planned for the long term.
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Risks |
– Increased debt due to M&A: Despite predominantly credit-friendly transactions, an increase in debt could have a negative impact on balance sheet quality. – Integration risks and delayed synergies: Savings potential and efficiency gains are not realized immediately and could be diminished by high restructuring costs. – Long-term ESG uncertainties: While larger providers are better able to meet regulatory requirements, adapting to the energy transition remains a structural challenge.
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“The oil service sector has followed its historical pattern in the short term – but the ongoing consolidation marks a structural change with long-term opportunities for selective credit investors.”
– Steffen Ullmann
Senior Portfolio Manager – Investment Grade
Risks
Price losses due to increases in yields and/or higher risk premiums are possible. A total loss cannot be ruled out either.
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