NG00: Henry Hub natural gas futures symbol and API code

Latest NATURAL_GAS_USD value

NATURAL_GAS_USD is an intraday quote for the front-month contract, captured from published market sources several times an hour on trading days. It is not an official exchange settlement price, it is not the exchange's own data feed, and it is not the NG00 quote itself. Expect small differences from both, and read the source timestamp before comparing.

OilPriceAPI grants no rights in source data. Check the terms for each source before public display or redistribution. Data use.

What NG00 means

NG00 is the symbol MarketWatch uses for its Natural Gas Continuous Contract quote. NG is the product code the exchange gives its Henry Hub Natural Gas futures.

A continuous contract is not one delivery month: it follows the nearest month and moves on as each contract stops trading. MarketWatch labels the quote as delayed.

The contract behind NG00

Source: the exchange's Henry Hub Natural Gas futures contract specs. The exchange can change these terms; its page is the record.

Month codes for a single contract

NG00 follows the nearest month. One specific contract is written as the product code, a month letter and the year. NGZ26 is how the exchange's page wrote the December 2026 contract: NG for the product, Z for December, 26 for the year.

• F January
• G February
• H March
• J April
• K May
• M June
• N July
• Q August
• U September
• V October
• X November
• Z December

Source: the exchange group's contract month codes.

Get NATURAL_GAS_USD from the API

There is no NG00 code in the API. Request NATURAL_GAS_USD from the latest-prices endpoint:

curl "https://api.oilpriceapi.com/v1/prices/latest?by_code=NATURAL_GAS_USD" \
  -H "Authorization: Token YOUR_API_KEY"

The same request in Python, standard library only:

import json
import urllib.request

request = urllib.request.Request(
    "https://api.oilpriceapi.com/v1/prices/latest?by_code=NATURAL_GAS_USD",
    headers={"Authorization": "Token YOUR_API_KEY"},
)
with urllib.request.urlopen(request, timeout=10) as response:
    quote = json.load(response)["data"]

print(quote["price"], quote["as_of"], quote["contract_month"])

• as_of is when the value was observed. Compare it with the time on the quote you are checking against.
• contract_month names the delivery month the value refers to. Read it rather than assuming, especially in the days before a contract stops trading.
• For the physical spot price rather than futures, the API names NATURAL_GAS_HENRY_HUB_SPOT_USD as the counterpart series.

Latest prices are available on the free plan. Price history and futures curves by contract month need a paid plan; see pricing. Response fields are documented in the latest-prices API reference.