Convert US dry barrel to US oil barrel
Unit definitions
US dry barrel
The US dry barrel is equal to exactly $7\,056$ cubic inches.
US oil barrel
The US oil barrel is defined as exactly $42$ US liquid gallons. It is used for measuring crude oil and other petroleum products.
How to convert US dry barrel to US oil barrel
$$\text{Volume}_{\text{bbl (oil)}} = \text{Volume}_{\text{bbl (dry) (us)}} \cdot 0.7272727272727272727272727272727273$$
Examples
Example 1
Convert $30.0\ \text{bbl (dry) (us)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = 30.0 \cdot 0.7272727272727272727272727272727273$$
$$\text{Volume}_{\text{bbl (oil)}} = 21.818182$$
$$\therefore \ 30.0\ \text{bbl (dry) (us)} = 21.818182 \ \text{bbl (oil)}$$
Example 2
Convert $80.0\ \text{bbl (dry) (us)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = 80.0 \cdot 0.7272727272727272727272727272727273$$
$$\text{Volume}_{\text{bbl (oil)}} = 58.181818$$
$$\therefore \ 80.0\ \text{bbl (dry) (us)} = 58.181818 \ \text{bbl (oil)}$$
Example 3
Convert $120.0\ \text{bbl (dry) (us)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = 120.0 \cdot 0.7272727272727272727272727272727273$$
$$\text{Volume}_{\text{bbl (oil)}} = 87.272727$$
$$\therefore \ 120.0\ \text{bbl (dry) (us)} = 87.272727 \ \text{bbl (oil)}$$
Example 4
Convert $130.0\ \text{bbl (dry) (us)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = 130.0 \cdot 0.7272727272727272727272727272727273$$
$$\text{Volume}_{\text{bbl (oil)}} = 94.545455$$
$$\therefore \ 130.0\ \text{bbl (dry) (us)} = 94.545455 \ \text{bbl (oil)}$$
Example 5
Convert $175.0\ \text{bbl (dry) (us)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = 175.0 \cdot 0.7272727272727272727272727272727273$$
$$\text{Volume}_{\text{bbl (oil)}} = 127.272727$$
$$\therefore \ 175.0\ \text{bbl (dry) (us)} = 127.272727 \ \text{bbl (oil)}$$