Navigating Interest Rate Changes: Essential Insights for Delek US Holdings Employees on Pension Lump Sums

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The Q1 2026 energy crisis has introduced significant volatility into the retirement planning calculations of many Delek US Holdings professionals, reinforcing the importance of a diversified, inflation-aware retirement strategy that accounts for the cyclical nature of the energy sector.

The Strait of Hormuz crisis has pushed Brent crude to ~$107/barrel and WTI to ~$94/barrel, marking one of the most severe oil supply shocks since the 1973 embargo, according to the IEA's March 2026 emergency report.

Natural gas markets have followed suit, with European TTF near ~$16.90/MMBtu and U.S. Henry Hub prices at approximately ~$2.94/MMBtu, as Iran's strikes on Qatar's Ras Laffan LNG terminal further disrupted global LNG supply chains.

The Q1 2026 energy market shock has delivered significant short-term gains for many Delek US Holdings employees' retirement accounts — and is also a reminder that sector concentration risk is real, making systematic diversification the most reliable path to long-term financial security.

Many Delek US Holdings employees planning or departing from traditional Defined Benefit (DB) pension systems have faced lower lump sum distributions in recent years, driven by fluctuations in cash interest rates. The notable fluctuations in cash interest rates throughout the year have negatively impacted these values, marking a significant departure from earlier forecasts.

Throughout 2023, studies on statutory interest rates highlighted this trend, beginning with an April publication that detailed the potential effects on lump sums in the event of rising interest rates. A second update in November 2023 further adjusted these forecasts, confirming that the initial estimates were overly optimistic. By the end of September 2023, the segment rates used for these calculations had seen one of the largest 12-month increases on record, strongly influenced by the Federal Reserve's rate hikes aimed at curbing historically high inflation.

To gauge this influence, the IRS segment rates in November 2023 showed increases of 30 to 60 basis points across different segments, compared to their predecessors. These adjustments underscore the dynamic nature of financial planning for retirement. For instance, applying these November 2023 rates to a hypothetical scenario where a 51-year-old Delek US Holdings employee defers a $1,000 monthly salary until age 65, the entire payment significantly diminishes, as shown by the latest data:

- In November 2022, with segment rates of 1.02%, 2.72%, and 3.08%, the estimated lump sum was $116,800.

- If rates increased by 1%, the total amount would drop to $92,600, a decline of about 21%.

- By September 2023, as rates increased to 4.48%, 5.26%, 5.07%, the total amount further decreased to $71,500, representing a decline of 39%.

- By November 2023, with rates at 5.09%, 5.60%, and 5.41%, the estimated receipt amount fell to $66,300—a total decrease of 43%.

This shift disproportionately impacts younger plan participants, who experience more significant declines in lump sums, while older participants see relatively minor decreases.

The reevaluation of lump sums may lead to a decrease in the current value of benefits for some younger participants or those with lower benefits, below the $5,000 threshold. At this point, plan sponsors have the option to make cash payments or propose a transfer to an Individual Retirement Account (IRA), impacting several participants' retirement payout decisions.

Moreover, the rise in interest rates has specific consequences for cash balance plans. Although these plans are generally exempt from interest rate hikes concerning lump sums, they must still offer an annuity equivalent to the cash surplus. The rise in interest rates reduces the actuarial factor used in this conversion, potentially making annual payments more attractive. For example, a total sum of $100,000 for a 65-year-old retiree, based on November 2022 rates, would represent a monthly annuity of about $530. However, with the elevated rates of November 2023, this could increase to approximately $690 per month, adding an annual sum of $1,920 for the retiree's lifetime.

It is also crucial for plan participants to understand the implications of Section 415, which sets a limit on the cash amounts that can be paid out from these plans. Typically, the total sum is either the lesser amount calculated using the applicable plan's mortality table with an interest rate of 5.5% or the sum deducted using the mortality and interest rates of Section 417(e). Traditionally, the former calculation method has produced a lower sum due to the applied interest rate rise.

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Interest rate reductions through 2024 and 2025 have reshaped the financial landscape. The Federal Reserve implemented several rate reductions beginning in late 2024, offering measured relief to borrowers while posing challenges for savers. This forecast of a decrease could offer some relief to borrowers while posing new challenges for savers. For those with defined compensation plans, a reduction in interest rates could lead to increased payments, suggesting that deferring withdrawal to benefit from these potential better distributions might be a wise decision.

This evolution highlights the importance of meticulous and early planning concerning retirement finances. Staying informed and adaptable to economic changes remains crucial for Delek US Holdings employees seeking to optimize their retirement outcomes amid ongoing interest rate fluctuations.

As the Federal Reserve signals potential interest rate decreases, retirees might observe positive adjustments in their pensions. According to an April 2024 study by the Employee Benefits Research Institute, many individuals over 60 could benefit from these changes, as the present value of defined retirement pensions increases when interest rates decrease. This could boost the cash sums available to retirees, thus providing more significant financial protection as they transition into retirement. This trend underscores the importance of strategic financial planning and monitoring economic indicators to optimize pension outcomes.