Many mid-cap upstream companies are up sharply on the news of OPEC’s deal to cut production (along with Russia’s cooperation) for the first time in eight years. Companies such as Ensco (ESV), Enerplus (ERF), Weatherford (WFT), and Southwestern Energy (SWN) are all up at least 7% before noon EST.Larger companies, like Exxon (XOM), Chevron (CVX), Marathon (MRO), ConocoPhillips (COP), BP (BP), and Haliburton (HAL) are up around 2% on the news. As a consequence of the oil uptick – which is inherently inflationary and beneficial to stocks generally – the bond market rout has subsequently deepened. In November, the yield on the 10-year US Treasury had increased by more in any month since November 2009.