How we map holdings to the
sectors above: each holding's issuer carries a U.S. SIC industry code in its
EDGAR filer record, and each SIC code rolls up to a sector. Expand a sector to
see its industries, and click a SIC code to list this fund's positions in that
industry. Bonds and foreign or private issuers with no SEC filer record fall
into Unclassified.
Natural Gas Transmission
19.90%
Electric Services
11.08%
Natural Gas Distribution
6.67%
Electric & Other Services Combined
6.42%
Natural Gas Transmisison & Distribution
2.54%
Gas & Other Services Combined
0.39%
Cogeneration Services & Small Power Producers
0.09%
Crude Petroleum & Natural Gas
8.03%
Petroleum Refining
6.58%
Oil & Gas Field Services, NEC
2.96%
Bituminous Coal & Lignite Surface Mining
1.81%
Silver Ores
0.94%
Pipe Lines (No Natural Gas)
6.80%
Oil & Gas Field Machinery & Equipment
4.45%
Deep Sea Foreign Transportation of Freight
1.56%
Electrical Work
1.24%
Heavy Construction Other Than Bldg Const - Contractors