What is the sentiment of this news? Please choose an answer from {strong negative/moderately negative/mildly negative/neutral/mildly positive/moderately positive/strong positive}.

The sharp rise in benchmark oil prices since January has been weighing on airline stocks as fuel costs account for almost one quarter of total operating expenses. Per annual filings, United Airlines (NASDAQ: UAL) does not have fuel hedges to shield itself from short-term price fluctuations.
moderately negative