Remaining
Oil
and Natural
Gas
Resources of New Mexico
BROADHEAD, RONALD F., New Mexico Bureau of Geology and Mineral Resources, A Division of New Mexico Tech Socorro, NM 87801
New Mexico has produced 5.2 billion bbls of crude
oil
and 56
trillion cubic ft3 of natural
gas
since production of these resources began in the
1920’s. During 2002, 67 million bbls
oil
and 1.6 trillion ft3
gas
were produced in
New Mexico. Available estimates of undiscovered resources indicate a minimum of 1.48
billion bbls
oil
and between 68 and 89 trillion ft3
gas
remain to be produced in the
state. That is between 32 and 45 years of production for natural
gas
and 22 years of
production for crude
oil
at present rates of production. In the case of
oil
, especially,
this is a minimum figure because of the limitations involved in estimating an unknown
resource that can be neither seen nor measured directly.
The Reserve Life Index (the ratio of proved reserves to annual
production) has been relatively stable for the past two decades at approximately 12 years
for natural
gas
and 10 years for
oil
. The stability of the Reserve Life Indices of
oil
and
gas
indicates that new, previously unproven resources are being discovered and brought
into production at a rate that replaces production. In the case of
gas
, this is due
chiefly to the discovery and development of coalbed methane whose contribution to annual
New Mexico production has grown from 0% in 1987 to 38% in 1996 and still provides 30% of
the state’s
gas
production today.
Significant volumes of crude
oil
and natural
gas
remain to be
produced in New Mexico. Most of the existing resource base is not in proved reserves in
known
oil
and
gas
fields. Rather, it occurs as undiscovered resources that will only be
found and produced through application of sophisticated exploration methodologies and
concepts and, ultimately, drilling. Production of
oil
and
gas
will decline unless new
reserves of
oil
and
gas
are discovered, developed, and produced.
Oil
and
gas
prices will affect what will actually be discovered and
produced. Lower rates of discovery and production are associated with periods of low
prices and higher rates of discovery and production are associated with periods of high
prices.
