ONEOK Inc. (NYSE:OKE)

The return on invested capital (ROIC) exhibited significant volatility between 2018 and 2022, characterized by a sharp decline in 2020 followed by a robust recovery. This fluctuation is primarily driven by changes in net operating profit after taxes (NOPAT) rather than substantial shifts in the capital base after 2020.

NOPAT Performance

Net operating profit after taxes experienced a notable decline in 2020, falling to 1.37 billion from 2.04 billion in 2019. However, a strong recovery followed, with NOPAT increasing to 2.55 billion in 2021 and continuing upward to 2.72 billion by 2022, representing a substantial increase over the 2018 baseline.

Invested Capital Trends

Invested capital grew steadily from 16.42 billion in 2018 to 21.63 billion in 2020. From 2020 to 2022, the capital base remained relatively stable, fluctuating between 21.41 billion and 22.06 billion, suggesting a transition from a period of aggressive capital expansion to a phase of operational optimization.

ROIC Efficiency and Patterns

The ROIC trend reflects a direct correlation with profitability. A downward trend is observed from 11.50% in 2018 to a trough of 6.31% in 2020, coinciding with the period where capital growth outpaced profit growth. The subsequent recovery to 12.34% by 2022 indicates a marked improvement in capital efficiency, as profit growth significantly outpaced the expansion of the invested capital base during the final two years of the analyzed period.

The Return on Invested Capital (ROIC) exhibited a V-shaped trajectory between 2018 and 2022. After starting at 11.50% in 2018, the metric declined to a period low of 6.31% in 2020 before recovering strongly to reach 12.34% by the end of 2022. This fluctuation is primarily attributable to the divergent trends between operating profitability and asset efficiency.

Operating Profit Margin (OPM)

A general downward trend in profitability is observed following a peak in 2019. The operating profit margin rose from 15.79% in 2018 to 21.09% in 2019, but subsequently contracted every year, ending at 13.08% in 2022. This suggests a decline in the efficiency of converting revenue into operating profit over the latter half of the period.

Turnover of Capital (TO)

Capital turnover served as the primary driver of ROIC volatility. A significant contraction occurred between 2018 and 2020, with the ratio falling from 0.77 to 0.40, coinciding with the trough in ROIC. However, a sharp reversal followed, with turnover increasing to 0.77 in 2021 and peaking at 1.01 in 2022. This indicates a substantial improvement in the company's ability to generate revenue from its invested capital base.

Effective Cash Tax Rate Component

The tax impact, represented by 1 minus the effective cash tax rate, remained relatively stable throughout the five-year period. Values fluctuated within a narrow range between 89.91% and 95.19%, indicating that tax efficiency had a negligible influence on the overall volatility of the return on invested capital.

ROIC Decomposition and Synthesis

The analysis reveals a shift in the drivers of value creation. In the earlier part of the period, ROIC was supported by higher operating margins. By 2022, the growth in ROIC was driven exclusively by capital turnover, which expanded sufficiently to offset the steady erosion of the operating profit margin. The recovery from the 2020 low was fundamentally a result of increased asset productivity rather than improved operational margins.

An analysis of the financial performance from 2018 to 2022 reveals a significant expansion in scale coupled with a contraction in operating efficiency. While absolute profitability increased over the five-year period, the relationship between revenue growth and operating profit indicates a shift in the operational cost structure.

Revenue and Net Operating Profit Trends

Revenues experienced a contraction between 2018 and 2020, decreasing from 12.59 billion to 8.54 billion. This was followed by a period of aggressive growth, with revenues surging to 16.54 billion in 2021 and reaching 22.39 billion by the end of 2022. Net operating profit before taxes (NOPBT) followed a similar trajectory, dipping to 1.52 billion in 2020 before recovering strongly to peak at 2.93 billion in 2022.

Operating Profit Margin Analysis

The operating profit margin (OPM) exhibited a volatile trend, reaching a peak of 21.09% in 2019. Following this peak, a consistent downward trend is observed, with the margin falling to 17.78% in 2020, 16.45% in 2021, and ultimately reaching a period low of 13.08% in 2022. This indicates that while the volume of business grew, the percentage of each revenue dollar converted into operating profit declined.

Correlation Between Scale and Efficiency

A divergence is noted between absolute profit growth and profit margins. The period of most rapid revenue expansion (2021-2022) coincides with the most significant decline in OPM. This suggests that the costs associated with generating the increased revenue grew at a faster rate than the revenue itself, leading to diminished operating efficiency despite the increase in total NOPBT.

The capital turnover performance exhibits a distinct V-shaped trajectory over the five-year period ending December 31, 2022. An initial phase of declining asset efficiency is followed by a robust recovery, culminating in a peak efficiency level in the final year of the analysis.

Revenue Trajectory

Revenues experienced a sustained downward trend between 2018 and 2020, decreasing from 12.59 billion to 8.54 billion. A significant reversal occurred in 2021, with revenues climbing to 16.54 billion and further accelerating to 22.39 billion by the end of 2022, indicating a strong expansion in top-line generation.

Invested Capital Evolution

Invested capital grew steadily from 16.42 billion in 2018 to 21.63 billion in 2020. Following this growth phase, the capital base stabilized, remaining relatively constant between 21.41 billion in 2021 and 22.06 billion in 2022.

Turnover of Capital (TO) Analysis

The turnover ratio declined from 0.77 in 2018 to a low of 0.40 in 2020, a result of decreasing revenues coupled with an increasing capital base. A sharp recovery ensued in 2021, returning the ratio to 0.77. By 2022, the ratio increased to 1.01, demonstrating a marked improvement in capital efficiency and the ability to generate higher revenue volumes from a stabilized investment base.

The analysis of the effective cash tax rate (CTR) from 2018 to 2022 reveals a period of volatility, characterized by a significant peak in 2020 followed by a stabilization phase. While cash operating taxes have demonstrated a consistent upward trajectory, fluctuations in net operating profit before taxes (NOPBT) have resulted in a variable tax burden relative to operating performance.

Cash Operating Taxes Growth

A sustained increase in cash operating taxes is observed, rising from US$ 100.7 million in 2018 to US$ 206.6 million in 2022. This represents a growth of approximately 105% over the five-year period, indicating a steady increase in absolute cash outflows for tax purposes.

Net Operating Profit before Taxes (NOPBT) Dynamics

NOPBT exhibited significant volatility, with a notable contraction in 2020 where profit fell to US$ 1.52 billion from US$ 2.14 billion in 2019. A strong recovery followed, with profits increasing to US$ 2.72 billion in 2021 and reaching US$ 2.93 billion by the end of 2022.

Effective Cash Tax Rate (CTR) Trends

The CTR remained relatively low and stable in 2018 (5.07%) and 2019 (4.81%) before spiking to 10.09% in 2020. This peak coincided with the period of lowest NOPBT, indicating that cash taxes remained high despite a dip in operating profit. In the subsequent two years, the rate moderated to 6.14% in 2021 and 7.05% in 2022, reflecting a return to a more normalized tax efficiency profile.