An array of energy-focused exchange-traded products dominated IndexUniverse’s worst-performers list on Friday, as investors interpreted the U.S. government’s weak jobs report as a sign growth was slowing and declining oil demand would surely follow.

The futures-based ETRACS CMCI Energy Total Return ETN (NYSEArca: UBN) was the worst performer on IndexUniverse’s “Bottom 10 1-Day Performers” list, with 6.46 percent in losses.

The No. 2 fund on the bottom-performers list was the iPath S&P GSCI Crude Oil Total Return ETN (NYSEArca: OIL), another futures-based strategy, which fell 4.22 percent. The No. 3 fund on the list was the equities-based EGShares Energy GEMS ETF (NYSEArca: OGEM), which declined 4.20 percent.

Oil prices have responded quickly to good or bad economic news in the past few years, even though demand has mostly been stable to slightly lower amid conservation efforts, such as a more fuel-efficient vehicle fleet. To that extent, the effects on oil prices of the Labor Department’s April report were swift and definite.

The oil-related meltdown even affected single-country ETFs focused on nations with abundant petroleum resources, such as Norway and Russia.

The iShares MSCI Norway Capped Investable Market Index Fund (NYSEArca: ENOR), was No. 6 on the list, with losses of 4.03 percent. The iShares MSCI Russia Capped Index Fund (NYSEArca: ERUS), was No. 9 on the list, with losses of 3.96 percent.

Top Performers

On the flip side, volatility funds dominated the top performers list on Friday, reaping the benefits of the slump over the disappointing jobs situation in the U.S. and the growing concern about the stability of the eurozone.

The No. 1 security on the “Top 10 1-Day Performers” list was the C-Tracks Exchange-Traded Notes on the Citi Volatility Index Total Return (NYSEArca: CVOL), which brought in returns of 6.69 percent.

The No. 2 fund on the “Top 1-Day Performers” list was the ProShares VIX Short-Term ETF (NYSEArca: VIXY), which had returns of 4.38 percent. The No. 3 fund on the list was the VelocityShares VIX Short Term ETN (NYSEArca: VIX), which had returns of 4.34 percent.

Some of the top-performing funds also spoke to investor appetite for the safety of U.S. Treasurys and precious metals; for example, the Pimco 25+Year Zero Coupon U.S Treasury Index Fund (NYSEArca: ZROZ) returning 1.17 percent, and the Global X Pure Gold Miners ETF (NYSEArca: GGGG), bringing in returns of 0.99 percent.

Top 10 1-Day Performers, Excluding Leverage/Inverse Funds and <1,000 Shares Traded

Disclaimer: All data as of 6 a.m. Eastern time the date the article is published. Data is believed to be accurate; however, transient market data is often subject to subsequent revision and correction by the exchanges.