  Magnetic reconnection is a process that plays a critical role in plasma
astrophysics by converting magnetic energy into plasma particle energy.
Recently, Comisso and Asenjo demonstrated that rapid magnetic reconnection
within a black hole's ergosphere can efficiently extract energy from a rotating
black hole. In this paper, by considering a Kerr black hole in the MOdified
gravity (MOG) framework, we investigate the impact of the MOG parameter
$\alpha$ on the rotational energy extraction via the Comisso-Asenjo process
(CAP). To model energy extraction from supermassive black holes located in the
center of galaxies, we set the value of $\alpha$ within the range inferred from
the recent observation of Sgr A* by the Event Horizon Telescope (EHT). Our
results indicate that the Kerr-MOG black hole is a more efficient host for
CAP-based rotational energy extraction compared to the Kerr black hole, since
it amplifies the power of energy extraction and efficiency of the plasma
energization process. We show that, from the energy extraction viewpoint, the
CAP is more efficient than the Blandford-Znajek process (BZP). The latter is
another magnetic field-based energy extraction model which is widely believed
to be an engine for powering the high-energy astrophysics jets emerging from
the supermassive black holes at active galactic nuclei. In particular, we show
that the ratio of the energy extraction power of CAP to BZP in the presence of
the MOG parameter is greater than that of the Kerr black hole. Our results
promise this phenomenological message that the MOG-induced correction on the
Kerr black hole background plays an important role in favor of energy
extraction via the CAP.
