Santos Ltd (STO) — Net Asset Quality Index
Santos Ltd (STO) has a Net Asset Quality Index of 48.9% as of December 2025. This metric measures the proportion of total assets financed by shareholders' equity — total assets of AU$32.05 Billion minus total liabilities of AU$16.37 Billion yields net assets of AU$15.68 Billion. A higher index indicates a stronger, lower-leverage balance sheet. Check asset resilience ratio of Santos Ltd to evaluate the company's liquid asset resilience ratio.
Quality Index
Net Assets
Total Assets
Total Liabilities
Santos Ltd Net Asset Quality Index Over Time (1987–2025)
This chart shows how Santos Ltd's Net Asset Quality Index has evolved across 36 annual periods from 1987 to 2025. As of December 2025, the index stands at 48.9%, representing net assets of AU$15.68 Billion against total assets of AU$32.05 Billion AUD. See STO working capital ratio to evaluate short-term liquidity relative to the company's equity base.
Annual Net Asset Quality Index for Santos Ltd (1987–2025)
The table below presents the year-by-year Net Asset Quality Index for Santos Ltd from 1987 to 2025, covering 36 annual filings. Each row shows total assets, total liabilities, net assets, the quality index percentage, and the change in percentage points compared to the prior year. For market capitalisation and the full company profile, see STO market cap overview.
| Year | Quality Index | Net Assets (AUD) | Total Assets | Total Liabilities | Change (pp) |
|---|---|---|---|---|---|
| 2025 | 48.9% | AU$15.68 Billion | AU$32.05 Billion | AU$16.37 Billion | ▼ -3.5 pp |
| 2024 | 52.4% | AU$15.54 Billion | AU$29.63 Billion | AU$14.10 Billion | ▲ +1.1 pp |
| 2023 | 51.3% | AU$15.28 Billion | AU$29.76 Billion | AU$14.48 Billion | ▼ -0.1 pp |
| 2022 | 51.4% | AU$14.84 Billion | AU$28.86 Billion | AU$14.01 Billion | ▲ +7.7 pp |
| 2021 | 43.7% | AU$13.57 Billion | AU$31.02 Billion | AU$17.45 Billion | ▲ +2.8 pp |
| 2020 | 40.9% | AU$7.23 Billion | AU$17.66 Billion | AU$10.43 Billion | ▼ -5.6 pp |
| 2019 | 46.5% | AU$7.68 Billion | AU$16.51 Billion | AU$8.83 Billion | ▲ +4.0 pp |
| 2018 | 42.5% | AU$7.28 Billion | AU$17.13 Billion | AU$9.86 Billion | ▼ -9.7 pp |
| 2017 | 52.2% | AU$7.15 Billion | AU$13.71 Billion | AU$6.55 Billion | ▲ +5.8 pp |
| 2016 | 46.4% | AU$7.08 Billion | AU$15.26 Billion | AU$8.18 Billion | ▼ -0.1 pp |
| 2015 | 46.5% | AU$7.43 Billion | AU$15.96 Billion | AU$8.54 Billion | ▲ +4.4 pp |
| 2014 | 42.1% | AU$7.70 Billion | AU$18.28 Billion | AU$10.58 Billion | ▼ -7.4 pp |
| 2013 | 49.6% | AU$9.11 Billion | AU$18.38 Billion | AU$9.27 Billion | ▼ -5.4 pp |
| 2012 | 55.0% | AU$9.73 Billion | AU$17.70 Billion | AU$7.97 Billion | ▼ -1.7 pp |
| 2011 | 56.7% | AU$9.16 Billion | AU$16.16 Billion | AU$7.00 Billion | ▲ +1.5 pp |
| 2010 | 55.2% | AU$7.72 Billion | AU$13.98 Billion | AU$6.26 Billion | ▼ -6.1 pp |
| 2009 | 61.3% | AU$6.26 Billion | AU$10.21 Billion | AU$3.95 Billion | ▲ +15.6 pp |
| 2008 | 45.7% | AU$3.13 Billion | AU$6.85 Billion | AU$3.72 Billion | ▲ +0.5 pp |
| 2007 | 45.2% | AU$2.90 Billion | AU$6.42 Billion | AU$3.52 Billion | ▼ -3.4 pp |
| 2006 | 48.6% | AU$2.65 Billion | AU$5.45 Billion | AU$2.80 Billion | ▲ +0.7 pp |
| 2005 | 47.9% | AU$2.17 Billion | AU$4.53 Billion | AU$2.36 Billion | ▼ -10.9 pp |
| 2004 | 58.7% | AU$2.73 Billion | AU$4.65 Billion | AU$1.92 Billion | ▼ -0.4 pp |
| 2003 | 59.2% | AU$2.32 Billion | AU$3.93 Billion | AU$1.60 Billion | ▲ +5.3 pp |
| 2002 | 53.8% | AU$1.61 Billion | AU$2.98 Billion | AU$1.38 Billion | ▼ -0.2 pp |
| 2001 | 54.0% | AU$1.39 Billion | AU$2.58 Billion | AU$1.19 Billion | ▲ +4.4 pp |
| 2000 | 49.6% | AU$1.29 Billion | AU$2.60 Billion | AU$1.31 Billion | ▲ +3.8 pp |
| 1998 | 45.8% | AU$1.18 Billion | AU$2.58 Billion | AU$1.40 Billion | ▼ -1.8 pp |
| 1997 | 47.5% | AU$1.25 Billion | AU$2.63 Billion | AU$1.38 Billion | ▼ -4.6 pp |
| 1995 | 52.1% | AU$1.13 Billion | AU$2.17 Billion | AU$1.04 Billion | ▼ -0.8 pp |
| 1994 | 52.9% | AU$1.19 Billion | AU$2.25 Billion | AU$1.06 Billion | ▲ +4.1 pp |
| 1993 | 48.8% | AU$935.07 Million | AU$1.92 Billion | AU$982.49 Million | ▲ +5.4 pp |
| 1992 | 43.4% | AU$847.65 Million | AU$1.95 Billion | AU$1.11 Billion | ▼ 0.0 pp |
| 1991 | 43.4% | AU$923.83 Million | AU$2.13 Billion | AU$1.20 Billion | ▼ -3.2 pp |
| 1990 | 46.6% | AU$1.07 Billion | AU$2.29 Billion | AU$1.22 Billion | ▲ +8.3 pp |
| 1989 | 38.3% | AU$886.68 Million | AU$2.31 Billion | AU$1.43 Billion | ▲ +2.0 pp |
| 1987 | 36.4% | AU$860.30 Million | AU$2.37 Billion | AU$1.51 Billion | — |