The fair value of cash and cash equivalents, notes receivable, notes payable and commercial
paper and nuclear decommissioning trust funds are not materially different from their carrying
amounts because of the short-term nature of these instruments or the stated rates approximating
market rates.
The following financial instruments have no book value associated with them and there are
no fair values readily determinable since quoted market prices are not available: guarantees
made to affiliates or recourse provisions from affiliates and sales agreements for trade
accounts receivables, LNG project settlement and Order 636 natural gas transition cost recovery.
Commodity Derivative Instruments. At December 31, 1997 and 1996, the Corporation
held or issued several instruments that reduce exposure to market fluctuations relative to
price and transportation costs of natural gas, electricity and petroleum products. The
Corporation’s market exposure, primarily within DETM and D/LD, arises from natural gas
storage inventory balances and fixed-price purchase and sale commitments that extend for
periods of up to 9 years. The Corporation uses futures, swaps and options to manage and hedge
price and location risk related to these market exposures.
DETM and D/LD also provide risk management services to its customers through a variety of
energy commodity instruments including forward contracts involving physical delivery of an
energy commodity, energy commodity futures, over-the-counter swap agreements and options.
In addition to hedging activities, the Corporation also engages in the trading of such
instruments, and therefore experiences net open positions. The Corporation manages open
positions with strict policies which limit its exposure to market risk and require daily
reporting to management of potential financial exposure. These policies include statistical
risk tolerance limits using historical price movements to calculate a daily earnings at risk
as well as a total Value-at-Risk (VAR) measurement. The weighted-average life of the Corporation’s
commodity risk portfolio was approximately 7 months at December 31, 1997.
Energy commodity futures involve the buying or selling of natural gas, electricity or
other energy-related commodities at a fixed price. Over-the-counter swap agreements require
the Corporation to receive or make payments based on the difference between a specified price
and the actual price of the underlying commodity. The Corporation uses futures and swaps to
manage margins on underlying fixed-price purchase or sale commitments for physical quantities
of natural gas, electricity and other energy-related commodities. Energy commodity options
held to mitigate price risk provide the right, but not the requirement, to buy or sell
energy-related commodities at a fixed price. The Corporation utilizes options to manage
margins and to limit overall price risk exposure. DETM and D/LD account for these activities
using the mark to market method of accounting.
At December 31, 1997 and 1996, the Corporation had outstanding futures, swaps and options
for an absolute notional contract quantity of 4,810 billion cubic feet (Bcf) and 3,425 Bcf
of natural gas, respectively, some of which were in place to offset the risk of price
fluctuations under fixed-price commitments for purchasing and delivering natural gas.
At December 31, 1997 and 1996, outstanding futures, swaps and options related to electric
contracts and other energy-related commodities were not material. The gains, losses and
costs related to those commodity instruments that qualify as a hedge are not recognized
until the underlying physical transaction occurs. At December 31, 1997 and 1996, the Corporation
had current unrecognized net gains of $13.5 million and $8.7 million, respectively, related to
commodity instruments. The fair value of energy commodity swaps held at December 31, 1997 was a
liability of $158.6 million.
During 1997, 1996 and 1995, the Corporation recognized net gains of $33.6 million, $25.4
million, and $10.5 million, respectively, from trading activities. The values of energy
commodity futures, swaps and options held for trading purposes were as follows: