European government bonds edged higher during the session, with a modest pullback in global oil prices offering some support to the fixed-income complex. The UK's longer-dated gilts found additional buoyancy from solid demand at the 30-year bond auction, which cleared at the highest yield since at least 1998, underscoring persistent investor appetite for long-term duration at elevated levels.

Germany's 10-year Bund yield slipped 3 basis points, reversing an earlier advance that had pushed the rate to 3.40%, a level not seen since 2011. The 30-year German bond yield also declined 3 basis points to settle at 3.82%, with losses concentrated at the long end of the curve, leading to a slightly bull-flattening move in yield dynamics.

The UK market exhibited a similar pattern of curve flattening, as the 2-year gilt yield rose 1 basis point to 4.58% while longer-term yields moved lower. That divergence between short and long maturities steepened the flattening trend, reflecting a cautious outlook on growth and inflation ahead. Bank of England Governor Andrew Bailey struck a wary tone on energy costs, cautioning that prices could still climb further, a remark that likely tempered expectations for aggressive policy easing.

Market participants are now looking ahead to Germany's auction of bonds maturing in 2036, scheduled for Wednesday, which will provide another test of demand for euro-area long-dated paper. In the broader market, Germany's 10-year yield was last seen down 3 basis points at 3.36%, while Bund futures gained 25 ticks to 122.04. Italy's 10-year yield eased 4 basis points to 4.17%, narrowing the spread over German Bunds by 1 basis point to 81 basis points. France's 10-year yield also dropped 3 basis points to 4.22%, while the UK's 10-year gilt yield slipped 1 basis point to 5.16%.