However, I strongly suggest watching each of these industry and commodity ETFs to see how they react to market conditions before making any investments. To learn about each ETF or ETN, click on the listing for a description of the fund to help you decide if any of these assets should be a part of your investing strategy. Broad Energy ETFs Leveraged and Inverse Energy ETFs for Your Portfolio

AXEN - iShares MSCI ACWI ex US Energy Sector Index ETF (Closed) CHIE - Global X MSCI China Energy ETF DBE - Invesco DB Energy ETF EMLP - First Trust North American Energy Infrastructure ETF ENFR - Alerian Energy Infrastructure ETF ENY - Invesco Canadian Energy Income ETF (Closed) ERX - Direxion Daily Energy Bull 2X Shares ETF ERY - Direxion Daily Energy Bear 2X Shares ETF ERYY - Direxion Daily Energy Bear 1X Shares ETF (Closed) FENY - Fidelity MSCI Energy Index ETF FILL - iShares MSCI Global Energy Producers Fund FXN - First Trust Energy AlphaDEX ETF ICLN - iShares S&P Global Clean Energy ETF IPW - SPDR S&P International Energy Sector ETF (Closed) IXC - iShares Global Energy ETF IYE - iShares U.S. Energy ETF JJE - iPath Series B Bloomberg Energy Subindex Total Return ETN JHME - John Hancock Multifactor Energy ETF OGEM - EGShares Energy GEMS ETF (Closed) ONG - iPath Pure Beta Energy ETN (Closed) PSCE - Invesco S&P SmallCap Energy ETF PXE - Invesco Dynamic Energy Exploration & Production ETF PXI - Invesco DWA Energy Momentum ETF RGRE - RBS Rogers Enhanced Energy ETN (Closed) RJN - ELEMENTS Rogers International Commodity Energy ETN RYE - Invesco S&P 500 Equal Weight Energy ETF SPXE - ProShares S&P 500 Ex-Energy ETF UBN - E-TRACS UBS Bloomberg CMCI Energy ETN (Closed) VDE - Vanguard Energy ETF XLE - Energy Select Sector SPDR

Clean and Alternative Energy ETFs

GEX – Market Vectors Global Alternative Energy ETF (Closed) PBD - Invesco Global Clean Energy ETF PZD – Invesco CleanTech ETF PBW – Invesco WilderHill Clean Energy ETF QCLN – First Trust NASDAQ Clean Edge Green Energy Index ETF

Natural Gas ETFs

DCNG - iPath Seasonal Natural Gas ETN (Closed) DDG - ProShares Short Oil & Gas ETF FCG – First Trust Natural Gas ETF BOIL - ProShares Ultra Bloomberg Natural Gas ETF KOLD - ProShares UltraShort Bloomberg Natural Gas ETF FRAK - VanEck Vectors Unconventional Oil & Gas ETF GASL - Direxion Daily Natural Gas Related Bull 3X Shares ETF (Closed) GASX - Direxion Daily Natural Gas Related Bear 3X Shares ETF (Closed) GASZ - ETRACS Natural Gas Futures Contango ETN (Closed) GAZ – iPath Series B Bloomberg Natural Gas Subindex Total Return ETN IGAS - Global Natural Gas Small Cap Equity ETF (Closed) MLPG - UBS E-TRACS Alerian Natural Gas MLP Index Fund (Closed) NAGS - Natural Gas Fund (Closed) UNG – United States Natural Gas Fund ETF UNL - United States 12 Month Natural Gas Fund ETF

Gasoline ETFs

UGA – United States Gasoline Fund ETF

Oil ETFs Your Guide to Investing in Crude Oil ETFs (And for a more specific oil list, here is a list of short oil ETFs.)

BARL - S&P 500 Crude Oil Linked ETN (Closed) BNO - United States Brent Oil Fund CRUD - WTI Crude Oil Fund (Closed) DBO - Invesco DB Oil ETF DDG -ProShares Short Oil & Gas ETF DNO - United States Short Oil Fund ETF (Closed) DUG - UltraShort Oil & Gas ProShares ETF FOL - 2X Oil Bull/S&P500 Bear ETF (Closed) FRAK - VanEck Vectors Unconventional Oil & Gas ETF IOIL - IQ Global Oil Small Cap ETF (Closed) OIH - VanEck Vectors Oil Services ETF OIL - iPath Pure Beta Crude Oil ETN OILZ - E-TRACS Oil Futures Contango ETN (Closed) OLEM - iPath Pure Beta Crude Oil ETN (Closed) SCO - ProShares UltraShort Bloomberg Crude Oil SNDS - Sustainable North American Oil Sands ETF (Closed) USO - United States Oil Fund ETF USL - United States 12 Month Oil Fund ETF UHN - United States Diesel-Heating Oil Fund ETF (Closed) UCO - ProShares Bloomberg Crude Oil ETF WCAT - TR/J CRB Wildcatters Exploration & Production Equity ETF (Closed)

Coal ETFs Coal ETFs – Not a Bad Investment for Your Stocking

KOL – VanEck Vectors Coal ETF (Closed)

Wind ETFs Wind ETFs - Are You Bullish or Bearish?

FAN – First Trust Global Wind Energy ETF

Solar Energy ETFs Making Green with Solar Energy ETFs Energy Boost: 5 Tips When Investing in Solar Stocks

KWT – iShares MSCI Kuwait ETF TAN - Invesco Solar ETF

Nuclear Energy ETFs

NLR - VanEck Vectors Uranium+Nuclear Energy ETF  NUCL – S&P Global Nuclear Energy Index ETF (Closed)

Biofuels ETFs

FUE –  MLCX Biofuels ETN

Electrical Energy ETFs

GRID - First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index ETF

Emerging Markets Energy ETFs 7 Ways Invest in Emerging Markets with ETFs

EEO – Dow Jones Emerging Markets Energy Titans Index Fund (Closed) SMOG - VanEck Vectors Low Carbon Energy ETF TPYP - Tortoise North American Pipeline Fund XOP - SPDR S&P Oil & Gas Exploration & Production ETF