US Government Borrowing Costs Hit Highest Levels Since 2025 as Oil Prices Surge

2026-07-13 economy

New York, Monday, 13 July 2026.
On July 13, 2026, escalating US-Iran military clashes pushed oil prices higher, driving the two-year Treasury yield to its highest level since February 2025 amid renewed inflation fears.

Geopolitical Escalation and the Oil Shock

The immediate catalyst for the sudden disruption in the bond market is a severe escalation of geopolitical conflict in the Middle East. Over the weekend preceding July 13, 2026, an Iranian strike on a commercial shipping vessel prompted retaliatory airstrikes from U.S. forces [4]. In response, Iran launched attacks targeting American military bases in several Gulf states, including Kuwait, Bahrain, Jordan, Oman, and Qatar [4]. This military exchange culminated on July 12, 2026, with Iran officially declaring the Strait of Hormuz closed [6], a move that sent Brent crude futures jumping by up to 5% in intraday trading [1][6] and trading at $78.50 per barrel, while West Texas Intermediate (WTI) futures rose 3% to $73.82 per barrel [4].

Treasury Yields Surge to Multi-Month Highs

This energy price shock immediately reverberated through the U.S. fixed-income markets on Monday, July 13, 2026, driving yields up as investors priced in renewed inflationary pressures [3][7]. The policy-sensitive two-year U.S. Treasury yield, which closely reflects short-term monetary policy expectations, climbed as much as 3 basis points to peak at 4.24% [1][7]—with some market trackers reporting it jumping above 4.23% [2], marking its highest level since February 2025 [1][3][7]—before settling near 4.22% later in the day [4][5]. Concurrently, the benchmark 10-year Treasury note yield rose to 4.59% [1][3][7], representing a 0.03 percentage point increase from the previous session’s yield of 4.56% [3], which can be calculated as a yield increase of 0.03 percentage points [3]. This benchmark yield is now hovering near its highest level in nearly two months [3].

Geopolitical Strain on Global Energy Corridors

The sudden military escalation has cast deep uncertainty over the future of the interim peace agreement signed between the U.S. and Iran in June 2026 [4]. That agreement had established a framework for 60 days of negotiations aimed at permanently reopening the Strait of Hormuz and ending regional hostilities [4]. However, with both sides trading strikes and offering conflicting reports regarding whether the strategic shipping lane remains passable [1][3], the agreement is under immense strain [4]. Because the Strait of Hormuz is a vital global transit route for oil, any prolonged closure threatens to lock in higher energy costs, directly feeding into global supply-chain inflation [3][4][6].

Broader Economic Impact and Tightening Credit

The broader economic consequences of these rising yields are already manifesting in higher borrowing costs for businesses and consumers [7]. Even prior to the Monday session, the geopolitical friction had begun spilling over into domestic credit markets; on July 9, 2026, U.S. mortgage rates experienced an upward shift as bond investor sentiment deteriorated [6]. Furthermore, longer-term borrowing costs have steadily intensified, with the 30-year Treasury bond yield surpassing the 5% threshold on July 8, 2026—its highest level since late May 2026 [6]—and trading at 5.075% on Monday, July 13 [4]. For corporate entities, this persistent upward march in yields tightens overall financial conditions, threatening to increase the cost of capital and complicate debt refinancing strategies for the remainder of the year [GPT].

Fed Rate Path and Inflation Pressures

The prospect of sustained energy-driven inflation has forced market participants to rapidly recalibrate their expectations for Federal Reserve monetary policy [1][6]. Financial analysts had already cautioned on July 10, 2026, that the central bank might be forced to reverse course and undo previous interest rate cuts that had helped stabilize the domestic economy [6]. By July 13, 2026, traders had adjusted their expectations, pricing in an approximate 71% probability of a Federal Reserve interest rate hike in September 2026 [3], a notable jump from the roughly 66% probability recorded just one week prior [7]. Investors are increasingly betting that the central bank will have to implement at least one rate hike before the end of 2026 to prevent inflation from becoming entrenched [3][7].

Crucial Economic Data and Congressional Testimony

This shifting policy outlook will face its first major tests this week with a series of high-stakes economic releases and congressional appearances [3][4]. Core inflation data, including the Consumer Price Index (CPI) and Producer Price Index (PPI) reports, are scheduled for release on Tuesday, July 14, 2026 [3][4]. These inflation metrics represent the final official prints before the Federal Reserve’s upcoming policy meeting scheduled for July 27 to 28, 2026, making them critical in determining whether the market’s rate-hike bets are justified [7]. Adding to the week’s significance, Fed Chair Kevin Warsh is scheduled to deliver his first testimony before Congress on Tuesday afternoon, a highly anticipated event that will be scrutinized for clues regarding the central bank’s policy trajectory [3][4].

Volatility Spills Into Equities and Consumer Sentiment

The volatility in the bond market has quickly spilled over into the equity markets, where S&P 500 futures recorded declines in premarket trading on July 13, 2026, as investors grappled with rising borrowing costs and geopolitical risks [6]. To gauge how these macroeconomic headwinds are impacting the real economy, analysts are closely watching the upcoming consumer sentiment index for July, which is scheduled for release on Friday, July 17, 2026 [4]. This report will provide critical insight into whether elevated interest rates and geopolitical anxieties are beginning to dampen household finances, or if the narrative of resilient consumer spending will continue to hold [4].

Sources

Treasury yields Inflation fears