Energy

Data - Yahoo

Author

François Geerolf

Info

Last observation: 2026-08-14 (N = 2)

First observation: 2000-08-23 (N = 1)

Last data update: 15 aoû 2026, 22:43. Last compile: 15 aoû 2026, 22:53

symbol

symbol Symbol Nobs
CL=F Crude Oil Futures 6522
TTF Old Dutch TTF 2431
TTF=F Dutch TTF Natural Gas Calendar 2216

Natural Gas prices

Linear

All

Code 
energy |>
  filter(symbol %in% c("TTF=F")) |>
  left_join(symbol, by = "symbol") |>
  ggplot() + geom_line(aes(x = date, y = close, color = Symbol)) + theme_minimal() +
  theme(legend.title = element_blank(),
        legend.position = c(0.5, 0.9)) +
  scale_y_continuous(breaks = seq(0, 1000, 20),
                     labels = dollar_format(pre = "", su = "€")) + 
  scale_x_date(breaks = as.Date(paste0(seq(1945, 2100, 1), "-01-01")),
               labels = date_format("%Y")) +
  xlab("") + ylab("Price per Megawatt-Hour")

2021-

Code 
energy |>
  filter(symbol %in% c("TTF=F"),
         date >= as.Date("2021-01-01")) |>
  left_join(symbol, by = "symbol") |>
  ggplot() + geom_line(aes(x = date, y = close, color = Symbol)) + theme_minimal() +
  theme(legend.title = element_blank(),
        legend.position = c(0.5, 0.9)) +
  scale_y_continuous(breaks = seq(0, 1000, 20),
                     labels = dollar_format(pre = "", su = "€")) + 
  scale_x_date(breaks = as.Date(paste0(seq(1945, 2100, 1), "-01-01")),
               labels = date_format("%Y")) +
  xlab("") + ylab("Price per Megawatt-Hour")

Log

All

Code 
energy |>
  filter(symbol %in% c("TTF=F")) |>
  left_join(symbol, by = "symbol") |>
  ggplot() + geom_line(aes(x = date, y = close, color = Symbol)) + theme_minimal() +
  theme(legend.title = element_blank(),
        legend.position = c(0.5, 0.9)) +
  scale_y_log10(breaks = c(1, 2, 3, 5, 8, 10, 20, 50, 100, 200, 500),
                     labels = dollar_format(pre = "", su = "€", acc = 1)) + 
  scale_x_date(breaks = as.Date(paste0(seq(1945, 2100, 1), "-01-01")),
               labels = date_format("%Y")) +
  xlab("") + ylab("Price per Megawatt-Hour")

2021-

Code 
energy |>
  filter(symbol %in% c("TTF=F"),
         date >= as.Date("2021-01-01")) |>
  left_join(symbol, by = "symbol") |>
  ggplot() + geom_line(aes(x = date, y = close, color = Symbol)) + theme_minimal() +
  theme(legend.title = element_blank(),
        legend.position = c(0.5, 0.9)) +
  scale_y_log10(breaks = c(1, 2, 3, 5, 8, 10, 20, 50, 100, 200, 500),
                     labels = dollar_format(pre = "", su = "€", acc = 1)) + 
  scale_x_date(breaks = as.Date(paste0(seq(1945, 2100, 1), "-01-01")),
               labels = date_format("%Y")) +
  xlab("") + ylab("Price per Megawatt-Hour")